Question

In a triangle abc angle b is two third of the angle a and angle c is 20 degree more than the angle a find the measure of each angle

Answer 1

Step-by-step explanation:

let angle a = x

angle b =2x/3

angle c = 20+x

sum of angles of triangle= 180

x+2x/3+20+x = 180

6x+2x+60 =540

8x =540-60

8x=480

x=480/8

x=60

angle a=60

angle b=40

angle c=80