Using the scale factor for enlarging an area

12 questions

1. A hexagon is enlarged by scale factor 3. What properties of the hexagon and its image are invariant?
2. Rectangle A has been enlarged to create rectangle B. Select the correct statements.
3. Rectangle A has been enlarged to create rectangle B. The area of rectangle B is ___ cm²
4. Trapezium B is an enlargement of trapezium A. Calculate the area of trapezium B.
5. Match each linear scale factor to the area scale factor.
6. Shape S is an enlargement an enlargement of shape R. The area of shape R is 24 cm². The area of shape S is ___ cm².
7. The transformation that causes a change in size of the object is ___.
8. Rectangles A and B are similar. What is the area scale factor from A to B?
9. Shapes P and Q are similar. The perimeter of shape P is 20 cm and the perimeter of shape Q is 40 cm. The area scale factor from P to Q is ___.
10. Sectors E and F are similar. The area of sector E is 25π cm². What is the area of sector F?
11. Sectors E and F are similar. The area of shape E is 26π cm² and the area of sector F is 58.5π cm². The radius of sector F is ___ cm.
12. Triangles L and M are similar. The area of triangle M is 150 cm². What is the perimeter of triangle M?

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