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Find the measure of DC if m

Find the measure of DC if m-example-1

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Answer:

  • B. 132°

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

User Anudeep GI
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