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angle A and B are supplementary.Angle A has a measure 80 what measure of angle B the measure of angle B is​

Respuesta :

Answer: 100

Step-by-step explanation:

Supplementary means they add up to 180. 180-80=100

Answer:

∠B = 100°

Step-by-step explanation:

Supplementary angles have a sum of 180°, thus

A + B = 180, that is

80 + B = 180 ( subtract 80 from both sides )

B = 100°

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