4MA0 Foundation June 2015 Paper 2R Q24
24
Diagram NOT accurately drawn
A solid cylinder has radius 3.5 cm and height 8.2 cm.
Work out the total surface area of the cylinder.
Give your answer correct to 3 significant figures.
(3)
| Scheme | Marks |
|---|---|
| \(2 \times \pi \times 3.5 \times 8.2 + 2 \times \pi \times 3.5^2\) or \(57.4\pi + 24.5\pi\) or \(81.9\pi\) or 180(.327..) + 76.9(690...) or \(2 \times \pi \times 3.5 \times 8.2 + \pi \times 3.5^2\) or 180(.327..) + 38.4(845...) or 218(.81....) | M2 |
| 257 | A1 |
| (3) | |
| Total 3 marks |
Notes
M2: Allow 76.9(690...), 180(.327...), 38.4(845...) and 218(.81...) if rounded or truncated to at least 3 significant figures.
M1 for \(2 \times \pi \times 3.5 \times 8.2\) or \(57.4\pi\) or 180(.3274…) or \(2 \times \pi \times 3.5^2\) or \(24.5\pi\) or 77 or 76.9(690…)
A1: awrt 257