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5 votes
Find the given measure

Find the given measure-example-1
User Doug Hauf
by
8.7k points

1 Answer

4 votes

Answer:

80°

Explanation:

The angle on the circle ∠DBC is half the measure of the arc it intercepts, thus

m CD = 2 × 40° = 80°

User Jonathan Kuhn
by
8.2k points