Question

Solve for b, show your work

Answer 1

b = 47°

Explanation:

The 3 angles lie on a straight line and sum to 180° , that is

b + 43° + 90° = 180°

b + 133° = 180° ( subtract 133° from both sides )

b = 47°

Answer 2

b= 47

Explanation:

180-90 =90

90 -43 =47