Changing Dimensions of 3-D Figures

Question 1

How will the perimeter of the rectangle change if each side is increased by a factor of 10?

Revolt · Accepted Answer

C: The perimeter will be 10 times the original.

Question 2

The circumference of a circle changes from 20 to 4 after a dilation. What was the scale factor of the dilation?

Revolt · Accepted Answer

B: One-fifth

Question 3

A rectangle is dilated by a factor of . The area of the new rectangle is 4 square yards. What could be the dimensions of the original rectangle?

Revolt · Accepted Answer

A: 10 yards by 10 yards

Question 4

The perimeter of a rectangle changes from 2.5 to 10 after a dilation. What was the scale factor of the dilation?

Revolt · Accepted Answer

B: 4

Question 5

A rectangle has a width of 5 inches and a length of 9 inches. What will be the new dimensions of the rectangle after it is dilated by a scale factor of 3?

Revolt · Accepted Answer

C: 15 inches by 27 inches

Question 6

How will the volume of the prism change if each side is increased by a factor of 4?

Revolt · Accepted Answer

D: The volume will be 64 times the original volume.

Question 7

How will the area of the circle change if it is dilated by a scale factor of ?

Revolt · Accepted Answer

C: The area will be the original.

Question 8

How will the volume of the pyramid change if each side is multiplied by a factor of ?

Revolt · Accepted Answer

D: The volume will be times the volume.

Question 9

A triangle is enlarged by a factor of 3. The perimeter of the new triangle is 36 feet. What could be the lengths of the sides of the original triangle?

Revolt · Accepted Answer

A: 3 feet, 4 feet, and 5 feet

Question 10

The triangle will be enlarged by a scale factor of 10. What will be the area of the new triangle?

Revolt · Accepted Answer

C: 3,500 square cm

Changing Dimensions of 3-D Figures Answers

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