Identifying parallel and perpendicular lines | Geometry | Khan Academy
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now
US / naʊ /
•UK / naʊ /
- adverb
- At the present time or moment
- Right away or in the next possible moment
- Used to refer to something that just happened
- Time between the present and a moment in the past
- conjunction
- Resulting from or because of something
measure
US / ˈmeʒə(r) /
•UK / ˈmɛʒɚ /
- noun
- Plan to achieve a desired result
- Tool used to calculate the size of something
- verb
- To determine the value or importance of something
- To calculate size, weight or temperature of
angle
US / ˈæŋgl /
•UK / ˈæŋɡəl /
- noun
- Place where two lines or surfaces meet
segment
US / ˈsegmənt /
•UK / ˈsɛɡmənt /
- noun
- Part divided from the other parts of something
- verb
- To separate something into different parts
would
US / wʊd /
•UK / wʊd /
- other
- Used to indicate something imagined
- Used to ask or request something politely
- Verb used to indicate possibility, request etc.
- Used to indicate a preference
- Used to indicate a reaction
- Indicates something that occurred repeatedly
- Used to indicate willingness or ability to do
really
US / ˈri:əli /
•UK / ˈriəˌli, ˈrili /
- adverb
- Used to stress something that is said; definitely
- In a true or accurate manner
- Very
box
US / bɒks /
•UK / bɑ:ks /
- noun
- A marked area of a baseball field
- A container with four straight sides and a lid
- Area of seating in a theater separated from others
- A 4 sided container or shape printed on a page
- Entire amount of something inside a container
- verb
- To strike someone on the side of the head
- To pack an object in a six-sided container
- To fight with gloved hands as a sport
our
US / 'aʊə(r) /
•UK / aʊr /
- determiner
- Belonging to us
maybe
US / ˈmeɪbi /
•UK / ˈmebi /
- adverb
- Possibly but not certainly; perhaps
not
US / nɒt /
•UK / nɑt /
- adverb
- Word indicating the negative
- (Used to form the negative of verbs)
can
US / kæn /
•UK / kən,kæn /
- noun
- A metal container for storing food
- other
- Able to; have the skill to; have the time to
- verb
- To have permission to
- To be possible to do
- To preserve food by sealing it in a metal container
give
US / ɡɪv /
•UK / ɡɪv /
- noun
- Degree of flexibility in something, a material
- verb
- To hand over or present something to someone
- To cause someone to have or experience something
good
US / ɡʊd /
•UK / ɡʊd /
- adjecitve
- Proper, appropriate or right
- (Of an amount) enough; plenty
- Excellent; high quality
- Acting well or properly; of moral character
- In a positive or happy emotional state
- noun
- Advantage or benefit
but
US / bət /
•UK / bʌt,bət /
- conjunction
- Used before you say something different, opposite
same
US / seɪm /
•UK / sem /
- adjecitve
- Being equal in quality and amount
- Identical; not different
- Not changing; constant
with
US / wɪð /
•UK / wɪð, wɪθ /
- preposition
- As an employee of a certain company
- Against something or someone
- By using something as a means
- Due to; because of
- Including
- Possessing as a feature
- Related to
- (Of the manner/attitude by which you do something)
- Used to express that people or things are together
know
US / nəʊ /
•UK / noʊ /
- verb
- To be familiar with a person or place, thing
- To feel sure or be convinced about something
- To discover or be aware of something
- To be able to distinguish
- To have knowledge of things
could
US / kəd /
•UK / kʊd /
- other
- Past form of 'can' to mean have ability
- Used to ask for something politely, or to offer
parallel
US / 'pærəlel /
•UK / ˈpærəˌlɛl /
- adjecitve
- (Of two lines) at equal distance from each other
- (Of computer operation) happening at the same time
- Very similar and often occurring at the same time
- noun
- A line on a map a set distance from the equator
- verb
- To be equal to, or like, something else
- To compare
information
US / ˌɪnfəˈmeɪʃn /
•UK / ˌɪnfɚˈmeʃən /
- noun
- Collection of facts and details about something
have
US / həv /
•UK / hæv /
- verb
- To drink, smoke, eat or use something
- To experience the effects of something
- To organize an event, or join in an activity
- To own, possess, or hold something
- To cause to happen or produce a particular effect
end
US / end /
•UK / ɛnd /
- noun
- The point where a process or activity stops
- A point that marks the limit of something; finish
- Goal or desired result
- The tip, edge or limit of something
- verb
- To be the last part of something
problem
US / ˈprɒbləm /
•UK / ˈprɑbləm /
- adjecitve
- Causing trouble
- noun
- Something difficult to deal with or causes trouble
- Question to show understanding of a math concept
way
US / weɪ /
•UK / we /
- adverb
- Used to emphasize the amount of something
- noun
- Particular aspect of something being thought about
- One of various choices that could be made
- Particular existing condition or state
- (Often long) distance or length of time
- How something is done
- Route to go to a place
- Small street
- Usual behavior, emotions or habits of someone
show
US / ʃəʊ /
•UK / ʃo /
- noun
- False display of love, emotion or action
- An event for displaying or promoting goods
- Play, opera or theater production
- Presentation that is broadcast on TV or radio
- verb
- To be easily seen or displayed
- To display your emotions or feelings
- To let someone see something; display
- To explain or teach how something is done
- To lead someone somewhere; point them to something
- To prove something to be true, correct
- To reveal or allow something to be seen
both
US / bəuθ /
•UK / boθ /
- determiner
- Used to refer to two things at the same time
- pronoun
- Used to refer to two things at the same time
look
US / lʊk /
•UK / lʊk /
- noun
- Person's beauty or physical attractiveness
- Particular style of dress, clothes, or appearance
- The way someone, something appears to be
- Act of searching for or examining something
- verb
- To appear to be; seem
clearly
US / ˈklɪəlɪ /
•UK / ˈklɪrlɪ /
- adverb
- In a way that is easy to understand; obviously
top
US / tɒp /
•UK / tɑp /
- adjecitve
- Being good or great; excellent
- Being the most in degree or quality
- noun
- Item of clothing covering shoulders to waist, hips
- A cover or lid
- Part (e.g. road) that is the furthest away
- Highest or upper part or point of something
- Best or highest status or position
- Flat upper surface or edge of an object
- Child's toy that spins on its point
- Upper section or leaves of fruits and vegetables
- Winning in a sport or contest
- verb
- To be higher or larger than a specific value
- To arrive at the highest point of something
- To put a cover or layer or over something
- To kill; murder
- To hold the highest position on a list
- To be more important, successful or better than
- To beat someone or win at a game
strange
US / streɪndʒ /
•UK / strendʒ /
- adjecitve
- Unusual or odd; surprising because unexpected
all
US / ɔ:l /
•UK / ɔl /
- adverb
- Completely; totally
- determiner
- Being every one of something
- pronoun
- 100% of something; the complete amount
very
US / 'verɪ /
•UK / ˈvɛri /
- adjecitve
- Concerning a large degree or amount
- adverb
- A lot; much; many
- Used to stress or emphasize a noun
yep
US / jep /
•UK / jɛp /
- noun
- Another way of saying 'yes'
they
US / ðeɪ /
•UK / ðe /
- pronoun
- Two or more people, animals, or things
specify
US / ˈspesɪfaɪ /
•UK / ˈspɛsəˌfaɪ /
- verb
- To state, name or mention exactly and clearly
perpendicular
US / ˌpɜ:pənˈdɪkjələ(r) /
•UK / ˌpə:pənˈdɪkjəlɚ /
- adjecitve
- Being at right angles to a given line or plane
line
US / laɪn /
•UK / laɪn /
- noun
- Border that divides two places or regions
- Long crease in the skin, often from age
- Mark that is long, straight and very thin
- Row of words, letters or numbers that are written
- Telephone connection
- People waiting one behind the other; queue
- Long thin wire, e.g. for electrical signal
- verb
- To put material along the inside of something
just
US / dʒʌst /
•UK / dʒʌst /
- adjecitve
- Proper or appropriate; as is deserved
- Doing or being what is right or fair
- Legally correct; having enough evidence
- adverb
- Almost; nearly
- Exactly at the time of
- Exactly (the same as, like)
never
US / 'nevə(r) /
•UK / ˈnɛvɚ /
- adverb
- Not ever; not at any time
well
US / wel /
•UK / wɛl /
- adjecitve
- Being in a fortunate, good condition or state
- Healthy and in good condition
- adverb
- In an acceptable, proper, or successful manner
- In a complete, total, or full manner
- A great and considerable degree
- In a successful way, in a good or satisfactory way
- exclamation
- Used to begin or continue a particular statement
- Used to show you want to start saying something
- Used to express that you are waiting for a reply
- You say this to change the topic of a conversation
- Used to indicate you are making a final remark
- noun
- Long deep hole in the ground to get water
- verb
- To cause your eyes to fill with tears
set
US / set /
•UK / sɛt /
- adjecitve
- Prepared for something; ready
- noun
- Complete group of something
- Place where a television show or movie is filmed
- Group of games in a tennis match
- Device that receives radio or television signals
- verb
- To make a clock state or ring at a particular time
- To decide upon or choose something
- To make something ready for use (e.g. table)
- To decide on a price for something
- To become hard (of glue, concrete etc.)
- To be located in a specific place or time
- To put (e.g. a vase) down carefully in a place
- To put someone in a certain condition or state
- (Of the sun) to go lower than the horizon
piece
US / pi:s /
•UK / pis /
- noun
- A counter in a board game
- Small part of something larger
- verb
- To put items together to assemble something
start
US / stɑ:t /
•UK / stɑrt /
- noun
- First time or place that a thing exists; beginning
- First opportunity to achieve something, e.g. a job
- Sudden action or movement because you are scared
- other
- Beginning of something in place or time
- verb
- To do, be or happen for the first time; begin
- To turn something on
exact
US / ɪɡ'zækt /
•UK / ɪɡˈzækt /
- adjecitve
- Completely correct; accurate; specific
- verb
- To get something, sometimes using force
diagram
US / 'daɪəɡræm /
•UK / ˈdaɪəˌɡræm /
- noun
- A drawing intended to explain how something works
- verb
- To show or explain something by drawing a picture
definitely
US / ˈdefɪnətli /
•UK / ˈdefɪnətli /
- adverb
- Without question; beyond doubt
though
US / ðəu /
•UK / ðo /
- adverb
- Although, despite the fact that
those
US / ðəʊz /
•UK / ðoz /
- determiner
- The people or things we are talking about
- pronoun
- The objects far from the speaker
judgement
US / ˈdʒʌdʒmənt /
•UK / ˈdʒʌdʒmənt /
- noun
- An opinion or decision made after consideration
- Official court decision given by judge
reminder
US / rɪˈmaɪndə(r) /
•UK / rɪˈmaɪndər /
- noun
- Something that causes one to remember something
for
US / fə(r) /
•UK / fɔr,fə /
- preposition
- Used to show the purpose, or need of something
base
US / beɪs /
•UK / bes /
- noun
- Place military personnel live, train, and operate
- Bottom part of an object that touches a surface
- Unit of counting, e.g. 10 for counting
- Most important idea or ingredient to add others
- Origin or start from which something came
- Main place where an organization or a person works
- verb
- To use as the starting point or origin for
- To have as the main location for (company, etc.)
and
US / ənd /
•UK / ənd, ən,ænd /
- conjunction
- Used to refer to two or more things
- Plus; in addition; on top of that
- Used to introduce an action that follows another
screen
US / skri:n /
•UK / skrin /
- noun
- Wire net in a door or window to keep insects out
- Displays in a theater on which movies are shown
- Flat surface on a computer or TV showing images
- verb
- To hide or block something from being seen
- To examine to find something, e.g. best candidate
bar
US / bɑ:(r) /
•UK / bɑ:r /
- noun
- Piece of (soap, chocolate etc.)
- Professional organization of lawyers and judges
- String of musical notes
- Place to meet friends and buy alcoholic drinks
- Long solid round piece of metal shaped like a pipe
- verb
- To prevent entry, exit or an action
correspond
US / ˌkɒrəˈspɒnd /
•UK / ˌkɔ:rəˈspɑ:nd /
- verb
- To have similarity or equality with something
- To write letters or emails to someone
where
US / hwɛə /
•UK / hwɛr, wɛr /
- conjunction
- At or in the place which
- In whatever place
- pronoun
- Word you use to ask the location of something
call
US / kɔ:l /
•UK / kɔl /
- noun
- A order or request for action
- The sound an animal makes, often when in danger
- A correct prediction, e.g. a decision in a game
- A short visit to a place or person
- A decision by a referee or umpire in a game
- verb
- To make a request or order for action
- (Animal) to make sounds to warn of danger
- To announce the date of an election
- To make a judgment about something
- To give someone or something a name
- To guess in advance the result or outcome
- To visit a place or person for a short time
- To phone someone
- To speak, announce or shout in a loud voice
think
US / θɪŋk /
•UK / θɪŋk /
- verb
- To have an idea about something without certainty
- To have an idea, opinion or belief about something
particular
US / pəˈtɪkjələ(r) /
•UK / pɚˈtɪkjəlɚ, pəˈtɪk- /
- adjecitve
- One specific (one)
- Having firm ideas about what is desirable
- Being special or more than is typical
literally
US / ˈlɪtərəli /
•UK / ˈlɪtərəli /
- adverb
- So as to express the exact meaning of something
- Used to say something is true, even if unlikely
any
US / 'enɪ /
•UK / ˈɛni /
- adjecitve
- One, or some, no matter which
- pronoun
- One (thing) of many; some
two
US / tu: /
•UK / tu /
- number
- 2
put
US / pʊt /
•UK / pʊt /
- phrasal verb
- to make a light stop shining by pressing or moving a switch
- verb
- To move or place a thing in a particular position
- To rate something in importance or value
- To write or say something in a certain manner
only
US / ˈəunli /
•UK / ˈonli /
- adverb
- Just one; just that amount or thing; not more than
- Not very important or serious
- Just that type of thing, person
- Short time ago; not before a certain time
- conjunction
- Except; but
over
US / 'əʊvə(r) /
•UK / ˈovɚ /
- adverb
- Finished; no longer happening
- Towards the ground/away from a standing position
- noun
- A set of six consecutive balls bowled in cricket
- other
- Finished
- preposition
- Showing the relation when a thing is above another
- On or covering something
- Above or across something
- More than you need
- From one side to the other
- In the direction of; toward
anything
US / ˈeniθɪŋ /
•UK / ˈɛniˌθɪŋ /
- pronoun
- A thing of any kind
sure
US / ʃʊə(r) /
•UK / ʃʊr /
- adjecitve
- Having no doubts about something
- Have confidence in your own words or actions
- Firmly established or held; being firm or stable
- Being correct or true
- adverb
- What you say to agree willingly
third
US / θɜ:d /
•UK / θɜ:rd /
- adjecitve
- 3rd: Number after second
write
US / raɪt /
•UK / raɪt /
- verb
- To compose letters and words on paper or a screen
- To invent or create a computer program
- To create a song or piece of music
actually
US / ˈæktʃuəli /
•UK / ˈæktʃuəli /
- adverb
- Used to add new (often different) information
here
US / hɪə(r) /
•UK / hɪr /
- adverb
- In this place; at this location, position or time
will
US / wɪl /
•UK / wɪl /
- noun
- Desire or choice of someone
- Document saying who gets your money when you die
- Strong desire to do something; determination
- Desire to do something; strong wish to do
- other
- Used with verbs to express the future
- verb
- To leave property to someone after your death
- To use mental effort to make something happen
- Am (is, are) likely to do
- To influence someone to do something
- To make something happen by strongly wanting it
guess
US / ɡes /
•UK / ɡɛs /
- noun
- Answer given when you don't know if it is correct
- verb
- To give an answer without knowing if it is correct
after
US / 'ɑ:ftə(r) /
•UK / ˈæftɚ /
- adverb
- Later than another time, or behind something
- conjunction
- Following something before
- preposition
- When an event happened or time has passed
always
US / 'ɔ:lweɪz /
•UK / ˈɔlwez,-wɪz,-wiz /
- adverb
- For a very long time
- At all times; in every situation
- For ever
somehow
US / ˈsʌmhaʊ /
•UK / ˈsʌmˌhaʊ /
- adverb
- In a way that is not known or certain
intersect
US / ˌɪntə'sekt /
•UK / ˌɪntɚˈsɛkt /
- verb
- To divide something by crossing it
imagine
US / ɪ'mædʒɪn /
•UK / ɪˈmædʒɪn /
- verb
- To think creatively about; form mental picture of
right
US / raɪt /
•UK / raɪt /
- adjecitve
- Correct or true
- The south side of you looking at the rising sun
- adverb
- Exactly in a place or time
- Being appropriate for a particular event
- In a straight or direct manner
- noun
- Something you are legally or morally allowed to do
- Ideal of what is just and good
- Political view based on conservatism
- verb
- To fix something previously wrong or unjust
- To make upright, as a boat that has turned over
mean
US / mi:n /
•UK / min /
- adjecitve
- Being good at
- Nasty; unkind
- Not liking to spend money; cheap; stingy
- noun
- Average of a set of numbers
- verb
- To express a particular idea or thought
- To intend to do something in particular
- To have a particular meaning or value
then
US / ðen /
•UK / ðɛn /
- adverb
- A time that is not now
- Following another thing in time or arrangement
- Following on reasonably from what was just stated
- At that time, not now
comment
US / 'kɒment /
•UK / ˈkɑmɛnt /
- noun
- Something you say, giving an opinion; remark
- verb
- To say something that gives your opinion
tell
US / tel /
•UK / tɛl /
- verb
- To (strongly) advise a person to do something
- To be able to guess
- To say or communicate information to someone
- To inform, but without speaking; indicate
- To have a negative effect on someone
- To order someone to do something; command
- To recognize something based on certain signs
- To report something to an authority
- To explain something or teach someone something
each
US / i:tʃ /
•UK / itʃ /
- determiner
- Every one of two or more things
- pronoun
- Per one person or thing
example
US / ɪgˈzɑ:mpl /
•UK / ɪɡˈzæmpəl /
- noun
- Thing, person which represents a category
bizarre
US / bɪˈzɑ:(r) /
•UK / bɪˈzɑr /
- adjecitve
- Odd or strange
that
US / ðæt /
•UK / ðæt, ðət /
- adjecitve
- The person or thing being talked about
- Used to identify something both the speakers know
- adverb
- Used to reinforce adjectives and adverbs
- To such a degree
- conjunction
- Used to connect a noun clause
- Used to introduce an adverbial clause
- Used to introduce a noun clause
- determiner
- Used as a noun to refer to something
- pronoun
- Referring an object far away
- Used to refer to the relative pronoun ‘which’
like
US / laɪk /
•UK / laɪk /
- adjecitve
- Being equal in status or kind to something else
- Similar; the same
- adverb
- For example
- preposition
- Used as a filler; used to ad emphasis
- In a way similar to the way something is done
- Such as; for example
- verb
- To want to
- To find something pleasing; to prefer something
even
US / 'i:vn /
•UK / ˈivən /
- adjecitve
- Being equal in influence, power, possibility etc.
- Being divided equally or fairly
- (Of teams/contest) with similar chances of success
- Smooth, level, or regular
- Can be divided by 2; ending in 2, 4, 6, 8, or 0
- At a regular, equally steady manner
- Remaining steady and unchanging
- adverb
- (When this is surprising) as well; too
- (Used to compare two things/stress the difference)
- verb
- To make something level; to flatten
- To make something equal
about
US / ə'baʊt /
•UK / əˈbaʊt /
- adverb
- To be ready to; going to
- Nearly; approximately; roughly
- Near; next to; close to
- In every direction; in the area of
- preposition
- Concerning or of (a topic)
you
US / jʊ /
•UK / ju /
- pronoun
- Person someone is speaking or writing to
- Person or people in general
suspend
US / sə'spend /
•UK / səˈspɛnd /
- verb
- To hang something or someone from something
- To stop something for a period of time; interrupt
how
US / haʊ /
•UK / haʊ /
- adjecitve
- To what degree? in what amount?
- adverb
- (Used to explain the way to do something)
- exclamation
- For what purpose or reason?
- (Used to ask someone or something's condition)
identify
US / aɪ'dentɪfaɪ /
•UK / aɪˈdɛntəˌfaɪ /
- verb
- To indicate who or what someone or something is
other
US / 'ʌðə(r) /
•UK / ˈʌðər /
- adjecitve
- A thing different from that mentioned
- determiner
- (Something) else; not the first (one)
- pronoun
- Being the one and only thing of that category
one
US / wʌn /
•UK / wʌn /
- pronoun
- You; we; people in general; someone
- The thing or person previously referred to
- adjecitve
- Used to refer to people generally
- Being a strong example of (something mentioned)
- number
- Number 1
this
US / ðɪs /
•UK / ðɪs /
- adjecitve
- Used to indicate something already been discussed
- Used to indicate something happening around now
- adverb
- An indication by a physical motion or gesture
- A specific amount of
- determiner
- Person, thing, or idea near you
- pronoun
- Person, thing that has already been discussed
the
US / ðə /
•UK / ðə /
- article
- Used to refer to something already mentioned
- Used to show there is only one of something
- determiner
- Used to describe all of a family
little
US / 'lɪtl /
•UK / ˈlɪtl /
- adjecitve
- Being short in length of time
- Not great in size, amount, or degree; small
- Being very young or younger than others
- adverb
- By an amount or degree that is not very much
- Not often; rarely
- noun
- A person's name
let
US / let /
•UK / lɛt /
- verb
- To allow someone to do something
- Introducing a suggestion to do something together
- To rent a house, etc. to others
verify
US / 'verɪfaɪ /
•UK / ˈvɛrəˌfaɪ /
- verb
- To prove that something is right, accurate or true
make
US / meɪk /
•UK / mek /
- noun
- Product made by a particular company; brand
- verb
- To arrange or prepare something e.g. dinner
- To get to (a place) on time
- To gain the status of (teacher, lawyer, etc.)
- To create something by putting things together
- To earn a certain amount of money at a job
- To cause or force a person to do something
- To cause something to happen or be formed
image
US / 'ɪmɪdʒ /
•UK / ˈɪmɪdʒ /
- noun
- Picture, sculpture or painting of something
- General idea or opinion of something
- verb
- To obtain pictures by scanning them with a machine
below
US / bɪ'ləʊ /
•UK / bɪˈlo /
- preposition
- In a lower position, place, or level