Question

The angle of a triangle are in ratio 2:7:11 .the angle is

Answer 1

Here is your answer
Let The angle of a triangle are 2x. 7x and 11x
As their sum are 180
$2x + 7x + 11x = 180 \\ 20x = 180 \\ x = 180 \div 20 \\ x = 9 \\ so \: angle \: is \: 2 \times 9 = 18 \\ 7 \times 9 = 63 \\ 11 \times 9 = 99$
Hope it helps you

Answer 2

Let the angles be 2x, 7x and 11x.
ATQ
2x + 7x + 11x = 180
20x = 180
x = 180 / 20
x = 9

2x = 2 × 9 = 18
7x = 7 × 9 = 63
11x = 11 × 9 = 99