4MA0 Foundation June 2014 Paper 2 Q22
22
Diagram NOT accurately drawn
Calculate the length of \(AC\).
Give your answer correct to 3 significant figures.
(3)
| Scheme | Marks |
|---|---|
| \(18.6^2 - 7.2^2\) (=294.12) | M1 |
| \(\sqrt{294.12}\) | M1 |
| 17.1 | A1 |
| (3) | |
| (3 marks) |
Notes
M1: for squaring and subtracting
M1: (dep) for square root
A1: for answer rounding to 17.1