Question

I have problems with this

Answer 1

33°

Explanation:

Exterior angle = sum of interior angles

145 = 112 + x

x = 145 - 112

x = 33°

Answer 2

x =33

Explanation:

The exterior angle on a triangle is equal to sum of the opposite interior angles

145 = x+112

Subtract 112 from each side

145-112 = x+112-112

33 =x