Question

if a pair of complementary angles are in the ratio 3:7 then find the smaller angle

Answer 1

let angles be 3x and 7x
so, 3x+7x=90 (complementary angles)
10x=90
x=9

3x=3*9=27
7x=7*9=63

then smaller angle is 27

hope it helps!!

Answer 2

The answer is 27 complementary angles are of 90 when they add they gives sum of 10