CSEC Mathematics · May/June 2015 · Paper 1 · Question Q35

Item 35 refers to the diagram below. AOB is a sector of a circle such that angle AOB = 60^\circ and OB is r units long. The area of AOB is

1. (A)\frac{1}{6}\pi r^2
2. (B)\frac{1}{6}\pi r
3. (C)\frac{1}{3}\pi r^2
4. (D)\frac{1}{3}\pi r

This question uses a figure or table from the paper — you'll see it when you practise.