Higher November 2022 Paper 1 Q15
15 The diagram shows a sector of a circle of radius 18 cm.
The length of the arc is \(4\pi\) cm.
Work out the value of \(x\). (3)
| Answer | Mark | Mark scheme |
|---|---|---|
| 40 | P1 | for a start to the process, eg \(\dfrac{x}{360} \times 2 \times \pi \times 18\ (= 4\pi)\) oe or \(\dfrac{4\pi}{2 \times \pi \times 18}\ \left(= \dfrac{x}{360}\right)\) oe |
| P1 | for a complete process to find \(x\), eg \(\dfrac{4\pi}{36\pi} \times 360\) oe | |
| A1 | cao |
Additional guidance
Any arrangement equivalent to this equation acceptable