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Question id: 154. This question is similar to one that appeared in a GCSE Higher paper (specimen) for 2017. The use of a calculator is allowed.

B, C, D and E are points on the circumference of a circle, centre O.

BD is a diameter of the circle and the diagram is not drawn to scale.

(a) Find the size of angle DBE and give a reason for your answer.

(b) Find the size of angle DBC and give a reason for your answer.

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