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4MA1/2F Jun 2019, Question 3: Parts of a Circle

Pearson Edexcel International GCSE Mathematics A 4MA1 · Paper 2F (Foundation) · Calculator · 3 marks

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The question, in short

For a circle with centre O and points A, B, C on it, where AOC is straight, name two lines and mark a sector.

Summarised in our own words. Use the official paper for the exact wording and the diagram.

Part (a) · 1 mark

Give the correct term for the straight line AC that passes through the centre O.

  1. 1AC passes through the centre O and joins two points on the circle
  2. 2So AC is a diameter

AnswerDiameter

Part (b) · 1 mark

Give the correct term for the straight line AB joining two points on the circle.

  1. 1AB joins two points on the circle but not through O
  2. 2So AB is a chord

AnswerChord

Part (c) · 1 mark

Shade on the diagram a region bounded by two radii and an arc.

  1. 1A sector is bounded by two radii and an arc
  2. 2e.g. shade the region between OB, OC and the arc BC

AnswerShade a region bounded by two radii and an arc, e.g. between OB, OC and arc BC (a semicircle is also accepted)

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