Question

The angles of a triangle are in the ratio 3 is to 2 is to 7 find each angle

Answer 1

let the angles are 3x:2x:7x

3x+2x+7x=180°(sum of the three angles of a triangle is 180°)

12x=180°

X=180/12= 15°

3x=45°

2x=30°

7x=105°

Answer 2

we know that, the sum of anglea of the triangle is 180 degree
here given ratio is 3:2:7
$3x+2x+7x = 180 \\ 12x = 180 \\ x = \frac{180}{12} =$
15
3x = 3×15= 45
2x =2×15= 30
7x = 7×15= 105
45, 30, 105 degree