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Cambridge IGCSE Additional Mathematics

8Coordinate geometry of the circle

Coordinate geometry of the circle in Cambridge IGCSE Additional Mathematics: what the syllabus expects you to know, the learning objectives and how to practise.
Topic53 practice questions3 lessons

In this topic

Lessons

  • The equation of a circle

    35 min

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  • Circles, lines and tangents

    40 min

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  • Intersecting circles

    35 min

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Sample question

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Coordinate geometry of the circle: sample question

1 mark

Find the radius of the circle x2+y2−6x+2y−15=0x^2 + y^2 - 6x + 2y - 15 = 0.

Only if the answer has a unit, e.g. cm or km/h.

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