Question

which statement is true about every parallelogram and why?

1) all four sides are congruent
2) the interior angles are all congruent
3) two pairs of opposite sides are congruent
4) the diagonals are perpendicular to each other

Answer 1

Well, we can cut out the Last one. As it's not necessarily, only if it is a rhombus.

Answer 2

The answer is (3)

Answer 3

@Disco619 why

Answer 4

This is why!