Question #50a30

1 Answer
Akazukin 赤ずきん
Nov 6, 2017

Angle B - Angle A = 6 degrees.

Explanation:

Supplementary angles add up to 180 degrees. If the supplement of angle A is 138 degrees, then 180 degrees - 138 degrees will give you angle A.

180 - 138 = 42180−138=42 degrees.

Complementary angles add up to 90 degrees. If angle B is the complement of angle A, then 90 degrees - 42 degrees will give you angle B.

90 - 42 = 4890−42=48 degrees.

Angle B - Angle A

-> 48-42=648−42=6 degrees.

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