IM Geo Unit 5 Lesson 7

The volume of a rectangular prism changes from 1,250 cubic inches to 125 cubic inches.  What is the scale factor of the change?

• 1/2
• 1/10
• 10
• 1/5

A solid with volume 12 cubic units is dilated by a scale factor of 0.25. Find the volume of the dilated image.

• V = 0.19 units³

• V = 3 units³

• V = 2.23 units³

• V = 1.63 units³

A solid with volume 8 cubic centimeters is dilated by a scale factor of 2.5. Find the volume of the dilated image.

• V = 75 cm³

• V = 20 cm³

• V = 125 cm³

• V = 105 cm³

• k = 8

• k = 2

• k = 4

• k = 3

A solid has a volume of 115 cm³. That solid is dilated and has a volume of 48.52. What was the scale factor of the dilation?

• k = 0.5

• k = 0.75

• k = 0.25

• k = 0.6

A scale factor of 2 is used to enlarge the dimensions of a square. What is the effect of this change on the area of the square?

• The area will be half as big.

• The area will be twice as large.

• The area will be 4 times larger.

• The area will be 8 times larger.

• The area will not change.

Travanta needs to wrap this box. Which measure of would be MOST helpful in determining the amount of wrapping paper Travanta needs?

• circumference

• surface area

• perimeter

• volume

Elsie needs to paint the wooden box below as a prop for the school spring musical. What is the surface area of the box?

• 12.50 square feet

• 18.75 square feet

• 36.25 square feet

• 46.50 square feet

How many times greater is the perimeter of a parallelogram if its side lengths are increased by a factor of 8?

• 8

• 16

• 64

• 512

What is the surface area of this figure?

• 200 cm ²
• 800 cm ²
• 400 cm ²
• 100 cm ²