Question

Find the angle which is equal to its supplement.​

Answer 1

90 degrees

the angles whose sum is equal to 180 degrees are called each others supplement

here

90+90=180

so both the angles are equal and each others supplement.

hence 90 degrees is the angle which is equal to its supplement.

Answer 2

Answer:

Subtract the required angle from 180

suppose 90 degree supplement is 180 -90 I.e90 degrees