chelsealawson111363 chelsealawson111363

11-06-2021
Mathematics

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Let m angle A = 40°. If angle B is a complement of angle A, and angle C is a supplement of angle B, what is m angle B+m angle C? A 60° B. 150° C. 180° D. 210°

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karenadeeb karenadeeb

11-06-2021

Answer is C)180. Complementary angles are equal so B and A are equal so B=40. Supplanentry angles add up to 180. So B+C=180.

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