Question

Find the measure of angle b

Answer 1

Step-by-step explanation:

b and 50 are supplementary angles (they add up to 180), so create an equation by adding them up to equal 180:

b + 50 = 180

we want the x by itself, so subtract both sides by 50 to get:

b = 130°

Answer 2

130°

Step-by-step explanation:

a straight line is 180°

so you have

180°-50°= 130°