Question

Two complementary angles are in the ratio 4:5 . find the angles

Answer 1

ΔheyΔ your answer is here

complementary angles =90°
the ratio is 4:5
let it be 4x, 5x
now thier sum=90°
4x+5x=90°
9x=90°
x=90/9=10°
x=10°
Measure of 1 angle=4x=4*10=40°
Measure of 2 angle=5x=5*10=50°
angles are 40° and 50°

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Answer 2

complementary angles=90°

4:5 =4x and 5x

The sum of 4x and 5x is 90°

so,

4x+5x=90°

9x=90°

X=10°

Now,

4x=4×10°=40°

5x=5×10=50°