Question

find the angles of a triangle which are in the ratio of 2:3:4

Answer 1

Let the angle be 'X'

Sum of all angles of a triangle is 180°

2x:3x:4x=180
9x=180
x=180/9
x=20

2(20)=40
3(20)=60
4(20)=80

Answer 2

Let them in the form of x :

2x : 3x :4 x

According to angle sum property of a triangle :

2x+3x+4x = 180°

9x = 180°

x = 180/9 = 20° .

2x = 2×20°= 40°

3x = 3*30° = 60°

4x = 4*30°= 120°