Question

The measure of angle is 20 degree more than its supplementary find the measure of the angle

Answer 1

Let the required angle be x.

Then, Its supplement = (180 - x)°

A/Q :-

$\rm x = 20 + (180 - x) \\ \rm x = 200 - x \\ \rm x + x = 200 \\ \rm 2x = 200 \\ \rm x = \frac{200}{2} = 100$

♦ Hence, The required measure of angle is 100° which is 20° more than its supplement.