Question

Find the angle which is double its complement.

Answer 1

suppose the angle be x
then it's complement is 90°-x
there fore the complement of x is double the x
90°-x=2x
90°=3x
x=30°
the angle is 30°

Answer 2

Hey here is your answer
______________________

Let the first angle be xand the second angle be 2x
then,
x + 2x = 90°
3x = 90°
x = 30°

and

2x = 60°