Question

what kind of quadrilateral is the following?
the diagonals and the sides form four congruent right angled triangles ​

Answer 1

Answer:

Parallelogram Theorem #1 Converse: If each of the diagonals of a quadrilateral divide the quadrilateral into two congruent triangles, then the quadrilateral is a parallelogram.

I hope it will help you..

Answer 2

Answer:

square

Step-by-step explanation:

congruent right angled are only formed in a square.

hope this helps