Higher November 2017 Paper 6 Q15
15 The following formula is for the area, \(A\), of the curved surface area of a cone.
\(A = \pi rl\), where \(r\) is the radius and \(l\) is the slant height of the cone.
Calculate the total surface area of a cone with radius 5 cm and slant height 12 cm.
........................................ cm2 [3]
| Answer | Marks | Part marks and guidance | |
|---|---|---|---|
| \(85\pi\) or 267[.0…] | 3 | M2 for \(\pi \times 5 \times 12 + \pi \times 5^2\) oe OR B1 for \(60\pi\) or \(25\pi\) or 188[.4…] or 188.5 or 78[.5…] or \(\pi \times 5^2\) | |