Foundation June 2023 Paper 2 Q22
22 The diagram shows a right-angled triangle.
Not to scale
Work out the value of \(a\). [3]
| Answer | Marks | Part marks and guidance | |
|---|---|---|---|
| 7 | 3 | B1 for \(\sin 30 = \dfrac{1}{2}\) oe M1 for \(\sin 30 = \dfrac{a}{14}\) or better | Accept any letter or correct identification for \(a\) e.g. \(x\) or opposite M1 implied by 14 x sin 30 oe Alternative Method: B1 for \(\cos 60 = \dfrac{1}{2}\) oe M1 for \(\cos 60 = \dfrac{a}{14}\) or better Accept equivalent Sine Rule application |