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Prove that the opposite angles of a parallelogram are congruent.

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Can anyone help?
Well, that's a property of parallelograms.

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Other answers:

But if you must prove it, I say you draw a diagonal from one angle to the opposite one, and then prove that the two triangles formed are congruent, since their three sides have the same length.
After that, just prove that the opposite angles are congruent because correspondent angles on congruent triangles are congruent.. @BIGDOG96
so here through this congruency it is proved that opposite angles of a parallelogram are always equal.
yw :)
I get it better with the pic
Is there anyway you could write out the steps, they kinda got chopped off. @jiteshmeghwal9
write my first & second replies
cleanly,in ur note-book
they are the steps :)
Is any of that missing?
Is this right? First draw two bisectors in the parallelogram. So, here is a parallelogram namely ABCD. angle 5 = angle 4 alternate interior angles congruency. 1 - 2 - angle 6 = angle 3 alternate interior angles congruency. 3 -angle 1 = angle 8 alternate interior angle congruency. 4 - angle 2 = angle 7 alternate interior angle congruency.
Okay thanks. Can you help with another one?
Hmm! if the question is not same then i will help you because i have cleared ur concept :)
in this type of question
Will you check my work?

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