smc-4240-60-Tangents

Circle Geometry, SMB-016

The line is a tangent to a circle and the secant intersects the circle at and .

Given that and , find the value of . (2 marks)

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The line is the tangent to the circle at , and is a secant meeting the circle at and .

Given that , and , find the value of . (2 marks)

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In the diagram, is the centre of the circle , is the midpoint of , is the tangent at and .

What is the size of the reflex angle ?

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The points , and lie on a circle centred at . The tangents to the circle at and meet at the point , and .

What is in terms of ?

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