Theorems of Parallelograms

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by milnea
Last updated 6 years ago

Discipline:
Math
Subject:
Geometry
Grade:
9

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Theorems of Parallelograms

Mrs. Milne's Madness

Theoremsof Parallelograms

proving theorems...

Theorem 6-3

Objective:G.CO11.) Prove theorems about parallelograms.

Theorem 6-6

Theorem 6-5

Consecutive angles are supplementary

Diagonals bisect each other

If three (or more)parallel lines cut off congruent segments on one transversal, then they cut off congruent segments on every transversal

Opposite angles are congruent

Opposite sides are congruent

Theorem 6-4

Theorem 6-7

Bibliography:Pearson, Geometry Common Core. 2012.Proving a Quadrilateral is a Parallelogram. Retrieved from http://www.youtube.com/watch?v=_32tPsdQcDo. November 7, 2013.Proving Quadrilaterals are Parallelograms. Retrieved from http://www.youtube.com/watch?v=e96q4vpMrOY. November 7, 2013.

Game:http://www.coolmath.com/reference/parallelograms.html

Game:http://www.mathsisfun.com/geometry/parallelogram.html


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