Higher June 2019 Paper 1 Q18
18 The diagram shows triangle \(PQR\).
Diagram NOT accurately drawn
Calculate the length of \(PR\).
Give your answer correct to 3 significant figures.
(3)
| Scheme | Marks |
|---|---|
| \(17.8^2 + 26.3^2 - 2 \times 17.8 \times 26.3 \times \cos 36\) | M1 |
| e.g. 1008.5… – 757.… or 251(.06…) | M1 |
| 15.8 | A1 |
| (3) | |
| (3 marks) |
Notes
M1: for correct order of operations
A1: for ans in range 15.8 – 15.9