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30-10-2022
Mathematics

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Angles A and B are complementary. If the measure of ∠A is 20°, what is the measure of ∠B?

Angles A and B are complementary If the measure of A is 20 what is the measure of B class=

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LalaniB615945 LalaniB615945

30-10-2022

Answer

Option A is correct.

Angle B = 70°

Explanation

Complementary angles sum up to give 90°

If A and B are complementary angles, then,

A + B = 90°

20° + B = 90°

B = 90° - 20°

B = 70°

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