Question

5. If one angle of a triangle is 60° and the other two angles are in the ratio 1/2 , then find the angles.​

Answer 1

Answer:

let the other two angles of the triangle be 1x° and 2x°

A.T.P,

1x° +2x° + 60° = 180° (sum of all angles of a triangle =180°)

3x° + 60° = 180°

3x°= 180° - 60°

3x° = 120°

x° = 120°÷ 3°

x° = 40°

therefore,

1x°= 1 × 40° = 40°

2x°= 2 × 40° = 80°

And:- the two angles those are given in the ratio 1:2 are 40° and 80°