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5 Min Quiz

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Multiply by a scale factor of 2:

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Review 1. A rectangle has a perimeter of 12 cm. If all of the dimensions are multiplied by a scale factor of 2, what is the new perimeter?

Hint:

- Draw a rectangle with a perimeter of 12 cm.
- Draw a new rectangle multiplying each side by 2.
- What is the new perimeter?

Review 2. A rectangle has a perimeter of 12 cm. If all of the dimensions are multiplied by a scale factor of 3, what is the new perimeter?

Hint:

- Draw a rectangle with a perimeter of 12 cm.
- Draw a new rectangle multiplying each side by 3.
- What is the new perimeter?

Hint:

- Draw a rectangle with an area of 40 cm2.
- Draw a new rectangle multiplying each side by 2.
- What is the new area?

Hint:

- Draw a rectangle with an area of 40 cm2.
- Draw a new rectangle multiplying each side by 3.
- What is the new area?

Review 7. A rectangular prism has a volume of 12 cm3. If all of the dimensions are multiplied by a scale factor of 2, what is the new volume?

Hint:

- Draw a rectangular prism with a volume of 12 cm3.
- Draw a new rectangular prism multiplying each dimension by 2.
- What is the new volume?

Review 8. A rectangular prism has a volume of 12 cm3. If all of the dimensions are multiplied by a scale factor of 3, what is the new volume?

Hint:

- Draw a rectangular prism with a volume of 12 cm3.
- Draw a new rectangular prism multiplying each dimension by 3.
- What is the new volume?

The base of a rectangular prism is drawn below. The total volume of the solid figure is 400 cm3. What is the height of the prism?

5 cm

8 cm

- The two boxes are similar. How many times does the volume increase from box 1 to box 2?

Box 1

Box 2

45 inches

- Tiny Tim wants to double the length and width of his lawn. How many times larger will the area of his new lawn be?

- The edges of a large rectangular prism are 3 times longer than the edges of a small rectangular prism. How many times greater is the volume of the large rectangular prism?

- What is the effect on the area of a circle when the radius is doubled?

- The dimensions of a large rectangular prism are twice the dimensions of a small rectangular prism. If the volume of the small rectangular prism is 16 cubic meters, what is the volume of the large rectangular prism?