Similar Shapes in 2D and 3DA rectangle has dimensions x cm and y cm. A similar rectangle is an enlargement of linear scale factor 5. Find the

A square has area 10cm2. Bob wants to enlarge it to obtain a square with area 20cm2. By what factor should he increase the lengths

1)2)

3)

4)5)

6)

Two spheres, A and B, are mathematically similar. The volumes of A and B are 11cm3 and 297cm3, respectively. The radius of A is 6 cm. Find the radius of B.

A and B are similar cylinders with radius 4cm and 8cm respectively. The volume of B is 300cm2. Find the volume of A

The surface area for the label of the smaller perfume bottle is 24cm2. Find the label surface area of the larger bottle.

The small pizza is 10 inches and costs £8. The larger one is 15 inches. What would be a fair price for the larger one? Length =

?

7)8)

9)10)

11)