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Edexcel IGCSE Math A 4.9.E circumference and area of circles

Practise circle-measure questions by choosing the radius or diameter, applying the correct formula and rounding to the stated accuracy.

Syllabus
First assessment 2018
Course
Math A 4MA1
Level
Foundation

Exam points

  • Calculate circumference or area from a given radius or diameter using circle formulae.
  • Find shaded areas involving circles inside squares or combined circle diagrams.
  • Use sector area or arc information when a circle part is shown in the diagram.

4.9.E Circumferences and areas of circles using relevant question 1

[Maximum number: 2]

A circle has radius 6.4 cm
Work out the area of the circle.
Give your answer correct to 3 significant figures.
cm2\mathrm{cm}^{2}

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