Question

Two angles of a quadrilateral are respectively 70 and 80 degrees. The other two angles are equal in measure.
Find the measure of the other two angles

Answer 1

Let the other two equal angles be x

Since it is given that the angles are of a quadrilateral, their sum should be 360° (angle sum property of a quadrilateral)

=> 70 + 80 + x + x = 360°

=> 150 + 2x = 360°

=> 2x = 360 - 150

=> 2x = 210°

=> x = 210/2

=> x = 105°

Your answer is 105°

Hope it helps dear friend ☺️

Answer 2

70+80=150degree in quadrilateral the sum of all angles is 360degree so the  angles will be 360-150=210degree but as the two angles are equal se 210 /2=105degree both.......