4400 Higher June 2004 Paper 3 Q15
15 The length of a side of a square is 6.81 cm, correct to 3 significant figures.
(a) Work out the lower bound for the perimeter of the square. (2)
(b) Give the perimeter of the square to an appropriate degree of accuracy.
You must show working to explain how you obtained your answer. (2)
You must show working to explain how you obtained your answer. (2)
| Scheme | Marks |
|---|---|
| \(6.805 \times 4\) | M1 |
| 27.22 | A1 |
| (2) |
Notes
A1: cao
| Scheme | Marks |
|---|---|
| \(6.815 \times 4 = 27.26\) | M1 |
| 27 | A1 |
| (2) | |
| (4 marks) |
Notes
A1: cao