Question

find the angle which is four times its complement​

Answer 1

Answer:

let angle be x

so angle 1 =x

angle 2 =4x

angle 1 + angle 2 = 90°

x+4x=90°

5x= 90°

x=45°

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Answer 2

x and y are complementary angles

let one angle=x

let other angle=y

______

x=4y .....(1)

_________

x+y=180°

= 4y+y =90

=5y=90

=y=18

___________

x=4y

x=4(18)

x=72

The angle which is 4 times its compliment is 72°