Similar Solid Classwork

What is the ratio of the volumes from larger to smaller. (HINT* Find the ratio of the side lengths first)

• 5/4

• 125/64

• 25/16

• 10/8

What is the scale factor of the side lengths of the figure on the left to the figure on the right. 

• 3/1

• 3240/120

• 27/1

• 1/3

Two spheres have a similarity ratio of 1:3.  The smaller sphere has a surface area of 16 ft²_.  What is the surface area of the larger sphere.

• 48 ft²

• 144 ft²

• 432 ft²

• 32 ft²

The surface area of the larger prism is 2560 m².  Find the surface area of the smaller prism.

• 921.6 m²

• 1536 m²

• 553 m²

• 7111.1 m²

Calculate the composite surface area of the figure.

• 80 cm²

• 72 cm²

• 52 cm²

• 42 cm²

This solid is a...

• pyramid.

• prism.

• sphere.

• cone.

The slant height of the cone is...

• 15 m

• 17 m

• 8 m

• 12.7 cm

If the ratio of the areas of two similar figures is 64:121, what is the ratio of their volumes?

• 64:121

• 8:11

• 120:242

• 512:1331

Find the ratio of the volumes from larger to smaller. HINT: Find the ratio of the side lengths first.

• 5/4

• 125/64

• 25/16

• 10/8

Find the scale factor of the side lengths of the figure on the left to the figure on the right. HINT: Find the volume ratio first.

• 3/1

• 3240/120

• 27/1

• 1/3