Question

12. Two complementary angles are in the ratio 4:5. Find the measure
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Answer 1

Answer:

let the angles be 4x and 5x..

4x+5x=90° because the sum of complementary angles is 90..

9x=90

x=90/9

x=10

now putting the value of x in 4x and 5x

4×10=40°

5×10=50°

so the measure of angles is 40° and 50°.....

hope this may help you....