Foundation November 2019 Paper 1 Q13
13 Here is a right-angled triangle.
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Show that angle \(x\) is \(35^\circ\), correct to the nearest degree. [3]
| Answer | Marks | Part marks and guidance | |
|---|---|---|---|
| Shows correct working leading to 34.9[9...] seen [rounding to 35] | 3 | M2 for \(\tan^{-1} \dfrac{14}{20}\) or M1 for tan [=] \(\dfrac{14}{20}\) or tan[=] 0.7 or tan[x] [=] \(\dfrac{14}{20}\) or 0.7 | If using Pythagoras , sin or cos, must have full method. Accept change of variable |