A-Level Maths Edexcel (9MA0)

#1.3.2 Circle geometry

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Skills

Write equation of a circle with centre and radius

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Write equation of a circle in general form

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Find intersection of a line and a circle

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Find equation of tangent to a circle at a point

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Write equation of a circumcircle of a triangle

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Use circle theorem: angle in a semicircle is a right angle

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Use circle theorem: tangent to circle is perpendicular to radius

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Use circle theorem: perpendicular bisector of a chord goes through center of circle

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