Foundation June 2018 Paper 3 Q16
16 Here is a right-angled triangle.

Not to scale
Work out the value of \(x\). [3]
| Answer | Marks | Part marks and guidance | |
|---|---|---|---|
| 18 | 3 | M2 for \(\sqrt{18.75^2 - 5.25^2}\) or \(\sqrt{324}\) or M1 for \(x^2 + 5.25^2 = 18.75^2\) oe | See AG |