Angles A and B are supplementary.If mangle A= 78° what is mangle B?

aflacatn 2020-11-27 Answered

Angles A and B are supplementary.
If mA=78° what is mB

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Expert Answer

Latisha Oneil
Answered 2020-11-28 Author has 100 answers

The measures of supplementary angles add up to 180. So if mA=78, then the measure of angle B must be mB=180mA=18078=102

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