4MA0 Higher January 2013 Paper 4 Q7
7
Diagram NOT accurately drawn
The diagram shows a shape.
Work out the area of the shape.
(4)
| Scheme | Marks |
|---|---|
| Splits shape appropriately eg rectangle + triangle or rectangle + rectangle + trapezium or ‘completing the rectangle’ | B1 |
| eg \(9 \times 10\) or 90 or \(9 \times 4\) or 36 or \(9 \times 6\) or 54 or \(\tfrac{1}{2} \times 7 \times 6\) or 21 or \(\tfrac{1}{2} \times (16 + 9) \times 6\) or 75 \(16 \times 10\) or 160 or \(\tfrac{1}{2} \times (4 + 10) \times 7\) or 49 | M1 |
| eg \(\tfrac{1}{2} \times 7 \times 6 + 9 \times 10\) \(\tfrac{1}{2} \times 7 \times 6 + 9 \times 4 + 9 \times 6\) \(9 \times 4 + \tfrac{1}{2} \times (16 + 9) \times 6\) \(16 \times 10 - \tfrac{1}{2} \times (4 + 10) \times 7\) | M1 |
| 111 | A1 |
| (4) |
Notes
B1: If lines not present on diagram then can be implied by correct method for at least two areas (areas must not overlap and must not be contradictory)
M1: for area of one appropriate rectangle, triangle or trapezium
M1: for complete method
A1: cao