4400 Higher November 2010 Paper 3 Q4
4
Diagram NOT accurately drawn
A circular pond has radius 8.9 m.
(a) Find the area of the pond.
Write down all the figures on your calculator display.
State the units of your answer. (3)
Write down all the figures on your calculator display.
State the units of your answer. (3)
(b) Give the value of your area correct to 2 significant figures. (1)
| Scheme | Marks |
|---|---|
| \(\pi \times 8.9^2\) | M1 |
| 248.8..... | A1 |
| m2 or sq metres oe | B1 |
| (3) |
Notes
M1: or \(3.14... \times 8.9^2\) or \(\frac{22}{7} \times 8.9^2\)
A1: awrt 248.7 to 248.9
B1: ind
| Scheme | Marks |
|---|---|
| 250 | B1ft |
| (1) | |
| (4 marks) |
Notes
B1ft: ft (a) if given to \(\geqslant\) 3 sig figs (ignore units). Do not award marks from part a).