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Mathematics (Help? Please. )

Two parallel lines are cut by a transversal. Angles A and B are adjacent exterior angles. Angle A measures 87 degrees. What does Angle B measure?

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  1. Angle A + angle B must add up to 180°
    so if angle A = 87°, then ....

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  2. B= 180 - 87
    B= 93 degrees.. :)

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  3. Excellent
    It's useful

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