June 2024 Paper 1 Q9
9 \(ABCDEFGH\) is a cuboid.
Work out the length \(AG\). [3 marks]
| Answer | Mark | Comments |
|---|---|---|
| \(3^2 + 4^2\) or \(3^2 + 12^2\) or \(4^2 + 12^2\) or \((EG =)\ 5\) | M1 | oe could be seen as \(\sqrt{\phantom{x}}\) may be seen evaluated eg. 25, 153 or 160 may been seen on diagram |
| \(3^2 + 4^2 + 12^2\) or \(5^2 + 12^2\) or 169 | M1dep | oe could be seen as \(\sqrt{\phantom{x}}\) must be expressions that could be evaluated to give 169 |
| 13 | A1 |
Additional guidance
| \(4\sqrt{11}\) or \(2\sqrt{44}\) or \(\sqrt{176}\) or \(\sqrt{162}\) or \(3\sqrt{18}\) or \(9\sqrt{2}\) | SC1 |