Question

the angle of a triangle are in AP the greatest angle is twice the least find the all angles
please tell it's very urgent

tomorrow is my exam satisfied answer will Mark as brain list

Answer 1

Since the angles are in AP,let the angles be     a-d,a,a+d(They are in AP)

Sum of angles of a triangle must be 180...so

a-d+a+a+d=180

3a=180

a=60

So the middle angle is 60

Given that greatest angle is twice the least

a+d=2(a-d)

a=3d

d=a/3=60/3=30

So the angles are 60-30,60,60+30

which are.... 30,60,90