All the angles of a quadrilateral are equal. What special name is given to this quadrilateral?

Question

Philoid · Accepted Answer

Let all the angles be equal to x

We know that,

Sum of all angles of a quadrilateral = 360°

⇒ x + x + x + x = 360°

⇒ 4x = 360°

⇒ x = 90°

Hence, the quadrilateral is a rectangle.