Question

The angle of a triangle are in ratio 1:3:5 find the measure of each of the angle

Answer 1

Hey Mate,

ATQ,

x + 3x + 5x = 180

9x = 180

x = 20

so angles are 20, 60, 100

hope this helps you out!

Answer 2

Let us take the given ratio be 1x :3x : 5x

Their sum = 1x + 3 x + 5 x = 9x.

But angle sum of a triangle is 180°.

So,

ATQ,9x =180°

or x = 180°/9

Therefore x = 20°

1st angle = 1x = 20°

2nd angle = 3x = 3×20°=60°

3rd angle = 5x = 5 ×20° =100°