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Mathematics 17 Online
OpenStudy (sarahhayes):

Prove that opposite angles of a parallelogram are congruent. Be sure to create and name the appropriate geometric figures.

OpenStudy (danjs):

Do you remember the parallel lines cut with a transversal angle properties? Cooresponding angles, alternate interior, exe..

OpenStudy (danjs):

you can extend the sides of the thing like this, notice it is 2 parallel lines cut with a transversal |dw:1475225592628:dw|

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