| Exam Board | OCR MEI |
|---|---|
| Module | C2 (Core Mathematics 2) |
| Year | 2016 |
| Session | June |
| Marks | 5 |
| Paper | Download PDF ↗ |
| Mark scheme | Download PDF ↗ |
| Topic | Sine and Cosine Rules |
| Type | Basic sine rule application |
| Difficulty | Moderate -0.3 This is a straightforward application of the sine rule to find an angle in a triangle where two sides and the included angle are given. It requires one calculation using a standard formula with no conceptual difficulty, making it slightly easier than average for A-level but still requiring careful execution of the sine rule. |
| Spec | 1.05b Sine and cosine rules: including ambiguous case |
\includegraphics{figure_4}
Fig. 4 shows triangle ABC, where AB = 7.2 cm, AC = 5.6 cm and angle BAC = 68°.
Calculate the size of angle ACB. [5]
\hfill \mbox{\textit{OCR MEI C2 2016 Q4 [5]}}