holacoma holacoma

25-02-2021
Mathematics

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Find the measure of DC if m

Find the measure of DC if m class=

Respuesta :

mhanifa mhanifa

25-02-2021

Answer:

B. 132°

Step-by-step explanation:

Find the measure of arc BD

m∠A = 1/2(arc BC - arc BD)
2*36° = 150° - arc BD
arc BD = 150° - 72° = 78°

Find the measure of arc DC

arc BD + arc BC + arc DC = 360°

arc DC = 360° - (150° + 78°) = 360° - 228° = 132°

Correct choice is B

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