Question

if the diagonals of a parallelogram are equal, then make sure that it is rectangle​

Answer 1

Answer:

If the diagonals of a parallelogram are equal, then show that it is a rectangle. its interior angles is 900. Since ABCD is a parallelogram and one of its interior angles is 900, ABCD is a rectangle.

Answer 2

Answer:

It's interior angles is 900. Since ABCD is a parallelogram and one of its interior angles is 900, ABCD is a rectangle.