1. Edexcel GCSE Maths Spec B – Modular: Booster C © Pearson Education 2010. This document may have been altered from the original. To understand another method for enlarging shapes. Objectives

2. Edexcel GCSE Maths Spec B – Modular: Booster C © Pearson Education 2010. This document may have been altered from the original. If your original shape and centre of enlargement are drawn on a grid, there is a very easy way of drawing the new shape. x Centre of enlargement Original shape We will enlarge this shape with scale factor 2.

3. Edexcel GCSE Maths Spec B – Modular: Booster C © Pearson Education 2010. This document may have been altered from the original. x Firstly note that all ‘moves’ mentioned from this point are made from the centre of enlargement. If your original shape and centre of enlargement are drawn on a grid, there is a very easy way of drawing the new shape.

4. Edexcel GCSE Maths Spec B – Modular: Booster C © Pearson Education 2010. This document may have been altered from the original. x How do I get to a point on the triangle from the centre of enlargement? 2 across 4 down If your original shape and centre of enlargement are drawn on a grid, there is a very easy way of drawing the new shape.

5. Edexcel GCSE Maths Spec B – Modular: Booster C © Pearson Education 2010. This document may have been altered from the original. x Now multiply these moves by the scale factor... 2 across 4 down...2 in this case If your original shape and centre of enlargement are drawn on a grid, there is a very easy way of drawing the new shape.

6. Edexcel GCSE Maths Spec B – Modular: Booster C © Pearson Education 2010. This document may have been altered from the original. x 2 across becomes 4 across 4 down becomes 8 down x Mark the new point. If your original shape and centre of enlargement are drawn on a grid, there is a very easy way of drawing the new shape.

7. Edexcel GCSE Maths Spec B – Modular: Booster C © Pearson Education 2010. This document may have been altered from the original. x 1 down x If your original shape and centre of enlargement are drawn on a grid, there is a very easy way of drawing the new shape.

8. Edexcel GCSE Maths Spec B – Modular: Booster C © Pearson Education 2010. This document may have been altered from the original. x 1 down becomes 2 down x x If your original shape and centre of enlargement are drawn on a grid, there is a very easy way of drawing the new shape.

9. Edexcel GCSE Maths Spec B – Modular: Booster C © Pearson Education 2010. This document may have been altered from the original. x 4 down x x If your original shape and centre of enlargement are drawn on a grid, there is a very easy way of drawing the new shape.

10. Edexcel GCSE Maths Spec B – Modular: Booster C © Pearson Education 2010. This document may have been altered from the original. x 4 down becomes 8 down x x x If your original shape and centre of enlargement are drawn on a grid, there is a very easy way of drawing the new shape.

11. Edexcel GCSE Maths Spec B – Modular: Booster C © Pearson Education 2010. This document may have been altered from the original. x x x x Then join the new points that you have marked. If your original shape and centre of enlargement are drawn on a grid, there is a very easy way of drawing the new shape.