robinsonarmani90 robinsonarmani90

09-10-2021
Mathematics

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In the diagram, mcd=128º and mpA=76º. What is McABC?

In the diagram mcd128º and mpA76º What is McABC class=

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mhanifa mhanifa

09-10-2021

Answer:

D. 102°

Step-by-step explanation:

m∠ABC =
m∠ABD + m∠CBD = Angle addition postulate
1/2mCD + 1/2mAD = Angle measure is the half the intercepted arc
1/2(128) + 1/2(76°) =
102°

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