1MA0 Foundation November 2012 Paper 1 Q27
27 The diagram shows a prism.
Diagram NOT accurately drawn
Work out the volume of the prism.
cm\(^3\) (3)
| Working | Answer | Mark | Notes |
|---|---|---|---|
| Area of cross section \(4 \times 7 + 5 \times 2\) or \(9 \times 2 + 5 \times 4\) OR \(9 \times 7 - 5 \times 5\) (= 38) | 380 | 3 | M1 for \(4 \times 7 + 5 \times 2\) (=38) or \(9 \times 2 + 5 \times 4\) (=38) or \(7 \times 9 - 5 \times 5\) (=38) or \(4 \times 7 \times 10\) or \(5 \times 2 \times 10\) (=100) or \(9 \times 2 \times 10\) (=180) or \(5 \times 4 \times 10\) (=200) or \(9 \times 7 \times 10\) (=630) or \(5 \times 5 \times 10\) (=250) M1 (dep) for \(\text{`}38\text{'} \times 10\) or 380 or \(4 \times 7 \times 10 + 5 \times 2 \times 10\) or \(9 \times 2 \times 10 + 5 \times 4 \times 10\) or \((7 \times 9 - 5 \times 5) \times 10\) A1 cao |