Question

The angles of a triangle are (x − 40) , (x − 20) and (1/2 x − 10) . Find the value of x.​

Answer 1

Answer:

x = 100

Step-by-step explanation:

Angle sum property of a triangle is 180

x - 40 + x - 20 + 0.5x - 10 = 180

2.5x -70 = 180

2.5x = 250

x = 100