An equilateral triangle ABC is inscribed in a circle with centre O. D is a point on the minor are BC and ∠CBD=400. Find the measure of ∠BCD.
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Q:
An equilateral triangle ABC is inscribed in a circle with centre O. D is a point on the minor are BC and ∠CBD=400. Find the measure of ∠BCD.
- 1false
500
- 2false
500
- 3true
200
- 4false
300
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