Exploring Scale Factors in Geometry

What is the perimeter of a rectangle if the original perimeter is 12 units and the scale factor is 2?

• 24 units

• 12 units

• 18 units

• 6 units

Tags

CCSS.7.G.A.1

If the area of a shape is 8 square units and the scale factor is 2, what is the new area?

• 32 square units

• 16 square units

• 8 square units

• 4 square units

Tags

CCSS.7.G.A.1

How do you calculate the new volume of a cube when the scale factor is 1/2 and the original volume is 216 cubic units?

• 27 cubic units

• 54 cubic units

• 216 cubic units

• 108 cubic units

Tags

CCSS.5.MD.C.5B

CCSS.6.G.A.2

What is the new surface area of a cube if the original surface area is 216 square units and the scale factor is 1/2?

• 27 square units

• 54 square units

• 216 square units

• 108 square units

Tags

CCSS.6.G.A.4

Using a scale factor of 3, what is the new volume of a rectangular prism if the original volume was 96 cubic inches?

• 864 cubic inches

• 288 cubic inches

• 2592 cubic inches

• 96 cubic inches

Tags

CCSS.7.G.B.6

What is the new perimeter of a triangle with an original perimeter of 9 units and a scale factor of 5?

• 18 units

• 9 units

• 14 units

• 45 units

Tags

CCSS.7.G.A.1

If the original area of a triangle is 3.9 square units and the scale factor is 5, what is the new area?

• 19.5 square units

• 97.5 square units

• 39 square units

• 3.9 square units

Tags

CCSS.7.G.A.1

What is the new surface area of a rectangular prism if the original surface area was 440 units and the scale factor applied was 1/2?

• 55 units squared

• 220 units squared

• 440 units squared

• 110 units squared

Tags

CCSS.7.G.B.6

What is the ratio of the new volume to the old volume when the scale factor is 1/2?

• 1 to 4

• 1 to 8

• 1 to 1

• 1 to 2

How does the application of salt affect the melting process on icy roads?

• It increases the freezing point of water.

• It increases the melting point of water.

• It has no effect on the ice.

• It decreases the freezing point of water.