Question

What is the value of u?

Answer 1

u = 119

Explanation:

The sum of the angles of a triangle add to 180

31+ u-40 + u-49 = 180

Combine like terms

2u -58 = 180

Add 58 to each side

2u-58+58 = 180+58

2u =238

Divide each side by 2

2u/2 = 238/2

u =119