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et mA = 40°. If B is a complement of A, and C is a supplement of B, find these measures. mB = ° mC = °

User Lenkite
by
6.3k points

1 Answer

5 votes

Alright, lets get started.

We have given angle A = 40°

We are also given angle B is complement of A.

Complementary angles are two angles whose sum is 90, it means

angle B =
90- A

angle B =
90 - 40

angle B = 50° Answer

Now given, angle C is supplement of angle B.

Supplementary angles are two angles whose sum is 180°.

Means angle C =
180 - B

angle C =
180 - 50

angle C = 130° : Answer

Means angle B = 50° and angle C = 130°

Hope it will help :)

User Froderik
by
7.4k points
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