Question

In a triangle , angles are in the ratio 8:3:7 then angles are: * 1 point (a) 50, 40 ,90 (b) 80, 30, 70 (c) 80, 50, 50 (d) None of these​

Answer 1

Step-by-step explanation:

Let the angles are 8x,3x,7x

According to the questions,

8x+3x+7x=180

(sum of three angles of a triangle 180°)

=>18x=180°

=>x=180°÷18

=>x=10°

The angles are 8x=8×10°=80°

7x=7×10°=70°

3x=3×10°=30°