Question

19. The sum of the angles of a triangle is 180°. If
the three angle are (2x + 15)°,85° and (x + 20°,
the value of x is​

Answer 1

Answer:

Step-by-step explanation:

since sum of all angles are is 180°

2x + 15 + 85+ x+20= 180

3x + 120= 180

3x=180-120

3x= 60

x =60÷3

x= 20°

I hope its help you

Answer 2

Answer:

x= 20°

Step-by-step explanation:

2x+ 15 +85 + x+20 =180

3x+120=180

3x= 180 - 120 = 60

x = 60÷3 = 20°