Question

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

Answer 1

@dan815

Answer 2

Create a diagonal, then prove that the two triangles formed by the diagonal are congruent.

Answer 3

Proven by ASA

Answer 4

bc a triangle adds up to 180 right?

Answer 5

yes, and also because of alt. \(\angle\)s

Answer 6

oops, it turns out that only alt. \(\angle\)s need to be used here

Answer 7

alternate interior angles?

Answer 8

yes, I don't know what they call it in your country...


BTW, which country you from? :)

Answer 9

oh, your profile said it

Answer 10

so you got it?