Question

3 angels of a quadrilateral are equal find the 4th angle
with solution

Answer 1

Answer:

Let the each equal angles will be X

By the angle sum property of a quad

sum of all angles is equal to 360

X+X+X+4th angle = 360

3x +4th angle = 360

4th angle = 360 - 3x

Answer 2

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°