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Proof: Opposite sides of parallelogram congruent | Quadrilaterals | Geometry | Khan Academy

280,943 views

Khan Academy

Video Language:

  • English

Caption Language:

  • {{captionLanguage | language_name}} ({{captionLanguage}})

Accent:

  • English (US)

Speech Time:

88%
  • 7:31 / 8:29

Speech Rate:

  • 145 wpm - Conversational

Category:

  • Education

Tags :

Intro:

Video Vocabulary

transversal

/tran(t)sˈvərsəl/

adjective noun

(of line) cutting system of lines. transversal line.

consider

/kənˈsidər/

verb

To think carefully about something.

depending

/dəˈpend/

verb

Be able to trust; rely on..

interior

/ˌinˈtirēər/

adjective noun

Being the inside part of a building, car etc.. Part of country that is far from the border, coast.

diagonal

/dīˈaɡənl/

adjective noun

Joining two opposite corners at an angle. straight line joining opposite corners of shape.

opposite

/ˈäpəzət/

adjective adverb noun preposition

situated on other or further side. in opposite position. opposite person or thing. facing.

alternate
adjective noun verb

every other. deputy or substitute. To follow one thing after another repeatedly.

parallelogram

/ˌperəˈleləˌɡram/

noun

four-sided plane rectilinear figure with opposite sides parallel.

because

/bēˈkəz/

conjunction

For a reason.

parallel

/ˈperəˌlel/

adjective noun verb

Very similar and often occurring at the same time. person or thing similar to another. To be equal to, or like, something else.

congruent

/kənˈɡro͞oənt/

adjective

Having the same shape and size.

intersecting

/ˌin(t)ərˈsekt/

verb

To divide something by crossing it.

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