Question 861737
In a triangle a angle is x degrees ,b angle is 2x degrees ,c angle is 105 degrees then find out the value of x ?

x + 2x + 105 = 180

3x + 105 = 180

Subtract 105 from each side of the equation.

3x + 105 - 105 = 180 - 105

3x = 75

Divide each side by 3

3x/3 = 75/3

Answer:

x = 25 degrees and

2x = 50 degrees






lennox obuong
algebra tutor