4MA0 Foundation June 2012 Paper 2 Q21
21

Diagram NOT accurately drawn
Calculate the length of \(MN\).
Give your answer correct to 3 significant figures.
(3)
| Scheme | Marks |
|---|---|
| tan 72 or tan 18 selected | M1 |
| (MN =) 34 × tan 72 | M1 |
| 105 | A1 |
| (3) | |
| (Total 3 marks) |
Notes
M1: or (MN =) 34 ÷ tan 18
A1: 104.64.... awrt 105