Foundation November 2018 Paper 1 Q20
20 Here is a right-angled triangle.

Not to scale
Work out the value of \(x\). [3]
| Answer | Marks | Part marks and guidance | |
|---|---|---|---|
| 28.8 | 3 | M2 for \(\sqrt{30^2 - 8.4^2}\) or M1 for \(x^2 + 8.4^2 = 30^2\) oe | Allow answer of 29 after M2 scored |