Foundation November 2022 Paper 2 Q26
26 Here is a triangle.
Not drawn accurately
Use Pythagoras’ theorem to work out the value of \(y\).
Give your answer as a decimal. [3 marks]
| Answer | Mark | Comments |
|---|---|---|
| \(14^2\) or 196 and \(9^2\) or 81 or 115 | M1 | implied by 277 or \(\sqrt{277}\) or 16.6(4…) |
| \(\sqrt{14^2 - 9^2}\) or \(\sqrt{196 - 81}\) or \(\sqrt{115}\) | M1dep | |
| 10.7(2…) | A1 | accept 11 with M2 seen |
Additional guidance
| Ignore incorrect rounding or truncation once correct answer seen | M1M1A1 |
| Answer 10.7(2…) with no working | M1M1A1 |
| Answer 10.7(2…) from trigonometry or accurate drawing | M0M0A0 |