Question

in a triangle, one angle is twice the other and the third angle is of measure 60degree ,what is the measure of the greatest angles

Answer 1

Let one angle be x and other be 2x
Given : x + 2x + 60 = 180
3x + 60 = 180
3x = 180-60
3x = 120
x = 120/3
x = 40
Substituting x = 40 in x and 2x
x = 40
2x = 2* 40
= 80

Answer 2

2x +x+60=180

3x+60=180

3x=180-60

x=120/3

x=40

2x=80 degree

therefore the greatest angle is 80 degree