Question

two complementry angle are in the ratio 5:4 then find the angles

Answer 1

let the ratio be 5x and 4x
Complementry angles add upto 90°
A.T.Q
5x + 4x = 90°
9x = 90°
x = 90/9
x = 10°
first angle = 5x = 5×10 = 50
second angle = 4x = 4×10 = 40

Answer 2

Let the angles be 5x and 4x
we know that the sum of complementary angle is 90°
5x+4x=90°
9x=90°
x=10°
now the measure of angles are 50° and 40°