Question

Ina circle with centre O, AD is a diameter and AC is a chord. B is a point on AC, such that OB = 5 cm and ∠ OBA = 600 If ∠ DOC = 600 , then what is the length of BC ?

A 5√3 cm Correct Answer Incorrect Answer
B 5 cm Correct Answer Incorrect Answer
C 3√5 cm Correct Answer Incorrect Answer
D 4 cm Correct Answer Incorrect Answer

Solution

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