Similar Shapes in 2D and 3D A rectangle has dimensions x cm and y cm. A similar rectangle is an enlargement of A square has area 10cm 2 . Bob wants to enlarge it to obtain a square with area 20cm 2 . By what factor 1 2 4 5 6 3 Two spheres, A and B, are mathematically similar. The volumes of A and B are 11cm 3 and 297cm 3 , respectively. A and B are similar cylinders with radius 4cm and 8cm respectively. The volume of B is 300cm 2 . The surface area for the label of the smaller perfume bottle is 24cm 2 . Find the label The small pizza is 10 inches and costs £8. The larger one is 15 inches. What would be a fair Length = ? 7 8 9 10 11