Three angles of a quadrilateral are equal. Fourth angle is of measure 150°. What is the measure of equal angles.

Question

Three angles of a quadrilateral are equal. Fourth angle is of measure 150&#xB0;. What is the measure of equal angles.

Philoid · Accepted Answer

Sum of angles of a quadrilateral is 360°

Let each equal angle is x°

150° + x° + x° + x° = 360°

3x° =

x° =

Therefore other equal angles are 70° each.