Question

2 complement angles are in a ratio 5:4.find the angles

Answer 1

let the angles be 5x and 4x
ATQ:

5x + 4x = 90

9x=90

x=10

therefore..

angles are 5*(10)=50 and 4*(10)=40

Answer 2

Ratio of angles=5:4

Let the angles=5x and 4x

We know that,
5x+4x=90° [because sum of complementary angles is 90°.]
9x=90°
x=90°/9
x=10°
Then,
5x=5×(10°)
5x=50°,

4x=4×(10°)
4x=40°

So, angles=50° and 40°.