Question

the angle of a triangle are (X + 10) ( x + 40) & (2x- 30) find the value of x

Answer 1

The sum of angles of the triangle is 180°
x+10+x+40+2x-30=180
4x+20=180
4x=180-20
4x=160
x=160/4
x=40°

Answer 2

Answer:

Your answer is in the pic above

Hope it helps. : )