GCSE Secondary Maths Age 13-17 - Geometry & Measures: Enlargement - Explained

The video tutorial explains how to enlarge a shape on a grid using a scale factor of two, centered at point A. It covers the importance of the scale factor, center, and choosing a vertex. The process involves doubling the distance from the center to the vertex and completing the shape by drawing the enlarged dimensions. The tutorial also discusses the marking criteria for correct positioning and enlargement.

What are the three key pieces of information needed to enlarge a shape on a grid?

• Scale factor, center, and vertex position

• Scale factor, center, and original shape

• Scale factor, center, and shape color

• Scale factor, center, and grid size

If the scale factor is two, how far should the new point be from the center compared to the original point?

• Half the distance

• Triple the distance

• Same distance

• Double the distance

When enlarging a shape by a scale factor of two, how many squares across should you move if the original was two squares?

• Four squares

• Eight squares

• Two squares

• Six squares

What is the total number of marks allocated for correctly enlarging the shape?

• 5 marks

• 3 marks

• 4 marks

• 2 marks

If you enlarge the triangle correctly but in a different location, how many marks can you still earn?

• Two marks

• One mark

• Zero marks

• Three marks