Foundation November 2018 Paper 2 Q21
21 A circle, with centre O and radius 6 cm, contains another circle, with centre O and radius \(x\) cm.
Write down an expression, in terms of \(\pi\) and \(x\), for the shaded area in cm\(^2\). [2]
| Answer | Marks | Part marks and guidance | |
|---|---|---|---|
| \(36\pi - \pi x^2\) oe final answer | 2 | M1 for \(\pi x^2\) or \(\pi \times 6^2\) oe | e.g. \(\pi(36 - x^2)\) or \(\pi \times 6^2 - \pi \times x^2\) |