Question

two adjacent angles on a straight line are in the ratio 4 : 5.find the measure of each angle​

Answer 1

here is your ans..........

Answer 2

let one angle 5x an second angle 4x

we know that sum of adjacent angles is 180°

now, 5x+4x=180°

9x=180°

x=180/9

x=20°

now, 5x=5×20=100°

4x=4×20=80°

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