Question

The sum of the angles of a triangle is 180⁰. If three angles are (2x+15)⁰, 85⁰ & (x+20)⁰ , find the angles of all the x​

Answer 1

Answer:

40, 55, 85

Step-by-step explanation:

Sum of all angles = 180

⇒ ( 2x + 15 ) + 85 + ( x + 20 ) = 180

⇒ 2x + 15 + 85 + x + 20 = 180

⇒ 3x + 120 = 180

⇒ 3x = 180 - 120 = 60

⇒ x = 60/3 = 20

  Hence,

Angles are :

 2x + 15 = 2( 20 ) + 15 = 55

 85

 x + 20 = 20 + 20 = 40