Question

three angles added up to 180 are in ratio 3:4:5 find them ​

Answer 1

let the angles be 3x, 4x & 5x

3x+4x+5x=180

12x=180

x=15

there fore the angles are 45°, 60°, 75°

Answer 2

let the angles be 3×,4×and 5× respectively.

atq

3x+4x+5x=180

12x=180

x=15

hence required angles are

3×15=45°

4×15=60°

5×15=75°