If O is the center of the circle and ABC = 24 degrees, what is the measure of BDC?
1 answer:
Answer:
∠BDC = 66°
Step-by-step explanation:
∠OCB ≅ ∠OBC, so is 24°. ΔDBC is inscribed in a semicircle, so ∠DBC is a right angle. That makes ∠BDC complementary to ∠BCD:
∠BDC = 90° -24°
∠BDC = 66°
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