3 years ago

Angles A and B are supplementary. Angle A has a measure of 80 degrees. What is the measure of angle B?

2 answers:

6 0

Answer: 100

Step-by-step explanation:

just did it

4 0

Supplementary angles, when added, equal 180 degrees

so < A + < B = 180...and if < A = 80
80 + < B = 180
< B = 180 - 80
< B = 100 <==

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