Question

The angles of a triangle are in arithmetic progression and the greatest angle is double the least

Answer 1

Answer:

Step-by-step explanation:

let the least angle be x.

the angles are x,x+d,x+2d

greatest angle=2x

x+x+d+x+2d=180

3x+3d=180

x+d=60

x+d-x=x+2d-x-d

x+d-x=2x-x-d

d=x-d

2d=x

d=x/2

x+d=60

x+x/2=60

x=60*2/3

x=40

d=20

the angles are 40,60 and 80