Key learning points

1. The scale factor is the multiplier.
2. The centre of enlargement defines where the image will be placed in relation to the object.
3. The object and enlarged image have the same orientation for positive scale factors.

Keywords

• Centre of enlargement - The centre of enlargement is the point from which a shape is enlarged.

• Scale factor - A scale factor is the multiplier between similar shapes that describes how large one shape is compared to the other.

Common misconception