CSEC Mathematics · January 2014 · Paper 1 · Question Q59

In the diagram, triangle ABC is mapped onto triangle A'B'C' where O is the centre of enlargement. What is the scale factor of the enlargement?

1. (A)\frac{1}{2}
2. (B)-2
3. (C)-\frac{1}{2}
4. (D)2

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