Question

Let mAngleA = 40°. If AngleB is a complement of AngleA, and AngleC is a supplement of AngleB, find these measures.

mAngleB =
°

mAngleC =
°

Answer 1

Answer:

mAngleB = 50

mAngleC = 130

Step-by-step explanation:

So if angle A is 40 subtract that to 90 to find angle B which is 50

And 50 + 40 = 90

Supplemenatry angles = 180

So if angle A/C is supplemenatry to angle B you would need to subtract 50 from 180 to find angle C is 130

130 + 20 = 180 = supplementary