Question

three angels of a quadrilateral are equal if the fourth angel is 90 Degree.find the measure of equal angles​

Answer 1

Answer:

Let each equal angle of given quadrilateral be x.

We know that, sum of all interior angles of a quadrilateral is 360°.

∴ x + x + x + 144° = 360°

3x = 360° - 144°

3x = 216°

x = 72°

Hence each equal angle of the quadrilateral is of 72° measures