Checking and securing understanding of enlargement with positive integer scale factors

12 questions

1. A ___ of a shape is the mirror image of the shape.
2. Which of these diagrams do NOT show a reflection?
3. Two shapes are similar if the only difference between them is their __________. Their side lengths are in the same proportions.
4. Which of these diagrams show a reflection?
5. Quadrilaterals A and B are similar. The length of the side marked z is ___ cm.
6. Rectangle B is an enlargement of rectangle A by scale factor 2. Rectangle A has perimeter = 18 cm and area = 18 cm². Both rectangles have integer side lengths. Find the area and perimeter of B.
7. An enlargement will produce an image that is __________ to the object.
8. Shape A is enlarged to give shape B. The scale factor of this enlargement is ___.
9. These two shapes are an enlargement of each other. The missing length is ___ cm.
10. Shape A is enlarged to give shape B. The scale factor of this enlargement is ___.
11. Shape A is enlarged to give shape B. What is the centre of the enlargement?
12. Shape A is enlarged by scale factor 2, centre (6, 6) to give shape B. Select the points that should be joined to give shape B.

License: OGL