Question

11. The angles of a triangle are in the ratio 1:7:2. Also, the sum of the angles of a triangle is 180°.
Find the angles of the given triangle​

Answer 1

here

let the ratio 1:7:2 be x, 7x and 2x respectively,

now,

x+7x+2x=180°

or,10x=180°

  x=18°

again,

x=18°

7x=126°

2x=36°

hence, the angles of the triangle are 18°, 126° , and 36°.

HOPE IT HELPED :)