Question

Measure the angle which is equal to its supplement

Answer 1

Sum of Supplementary angle is equal to 180°

Answer 2

Hi friend here's your answer!!!
Sum of supplementary angles=180degree
Let the angle be x
x+x=180degree
2x=180degree
x=180/2
x=90degree
so your answer is 90degree.

Hope it helps!!!!
Pls mark my answer as brainliest!!!