Question

Prove that the opposite angles of a parallelogram are congruent.

Answer 1

Hi ahaines14 :)

How are you dear ?

Answer 2

Do you know what is distance formula?

Answer 3

There are saveral methods to prove it.

Answer 4

triangles ABC and ADC are coungruent by Side side side test

then angle 2 = angle 4 corresponding angles in congruent triangles are equal.

similar proof for triangles BAD and BCD

to prove angle 3 = angle 1

Answer 5

im good @Shayaan_Mustafa

Answer 6

nice. I hope you got campbell_st

Answer 7

thanks both @campbell_st and @Shayaan_Mustafa

Answer 8

OK dear you are welcome BTW