smc-4240-30-Cyclic quads

Circle Geometry, SMB-018

In the diagram, is a diameter of a circle with centre . The point is chosen such that is acute-angled. The circle intersects and at and respectively.

Why is ? (2 marks)

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Find . (2 marks)

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Find . (2 marks)

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In the diagram, is a diameter of the circle centred , and .

Find . (2 marks)

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