October 2020 Paper 2 Q1
1 Fig. 1 shows triangle \(ABC\).
Calculate the area of triangle \(ABC\), giving your answer correct to 3 significant figures. [2]
| Scheme | Marks | AO |
|---|---|---|
| \(\frac{1}{2} \times 22.1 \times 18.0 \times \sin 133^\circ\) | M1 | 1.1a |
| 145 cao | A1 | 1.1 |
| [2] |
Notes
M1: or \(\frac{1}{2} \times 18.0 \times 36.8 \times \sin 26^\circ\)
or \(\frac{1}{2} \times 22.1 \times 36.8 \times \sin 21^\circ\)
NB 172.8 or 173 unsupported implies M1
A1: ignore units