Let measure of angle a = 40 degrees, if angle b is complement of angle a and c is supplement of angle B, what is measure of b + measure of c

Complementary angles (a and b) are equal to 90 °

90° - a = b

90° - 40° = b

b = 50°

Supplementary angles (b and c) are equal to 180 °, so ...

180° - b = c

180° - 50° = c

c = 130°

Measure b + Measure c = 180° btw