Edexcel IGCSEMathematicsGeneral Applications4 Marks
The diagram shows a solid cylinder. The cylinder has diameter 9 cm and height 16 cm. Work out the total surface area of the cylinder. Give your answer correct to 3 significant figures. [Figure 9 is a diagram of a cylinder with diameter 9cm and height 16cm]
This question uses a diagram from the original paper, which isn't shown here. Open the full paper from the past papers archive to see it.
Mark scheme
Marking points from the official mark scheme. The mark or mark type is shown in brackets.
- M1 for area of one circle: π × (9/2)^2 or π × 4.5^2 or 63.6(17...)
- M1 for curved surface area: π × 9 × 16 or 144π or 452.38...
- M1 (dep on at least one previous M1) for total surface area: 2 × 'area of one circle' + 'curved surface area'
- A1 for 580 (accept 579.9 – 580.2 inclusive)
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