Question

The measures of angles of triangle are x0 , (x -20)0 and (x -40)0 . Find the

measures of each angle​

Answer 1

Answer:

x +(x-20)+(x-40) =180

3x -60 =180

3x = 180+60

3x = 240

x = 240/3

x = 80

Hence,

first angle = x = 80

second angle = (x-20) = 80-20 = 60

third angle = (x-40) = 80-40 = 40