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01-02-2019
Mathematics

contestada

∠ A and ∠ B are complementary. If m∠ B = 80°, what is the measure of ∠ A?

10°
80°
90°
100°

Respuesta :

01-02-2019

Angle A would be 10 degrees.
Complementary angles add to 90 degrees.
So 90-80=10

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