Scale Factor Area Geometry

• 40

• 10

• 5

• 25

Tags

CCSS.7.G.A.1

• 81

• 4.5

• 3

• 9

Tags

CCSS.7.G.A.1

• 32 sq. cm.

• 120 sq. cm.

• 30 sq. cm.

• 60 sq. cm.

Tags

CCSS.7.G.A.1

Tags

CCSS.5.MD.C.5B

CCSS.6.G.A.2

• 9

• 18

• 81

• 729

Tags

CCSS.5.MD.C.5B

CCSS.6.G.A.2

The two pyramids shown are similar. If the smaller pyramid has a height of 21 meters, then what is the height of the larger pyramid?

• 11 meters

• 81.49 meters

• 33 meters

• 7 meters

Scale factor is the number that you _______ by to calculate a measure of a similar figure.

• add

• subtract

• multiply

• divide

Tags

CCSS.7.G.A.1

A scale factor of 1/2 is used to change the dimensions of a rectangle with a length of 7 centimeters and a width of 5 centimeters. What is the perimeter of the resulting rectangle?

• 12 cm.

• 35 cm.

• 24 cm.

• 38 cm.

Tags

CCSS.7.G.A.1

Review: These two triangles are

• similar, but not congruent

• not similar

• not enough information to tell

• congruent

Tags

CCSS.8.G.A.2

What will be true about this rectangle if you use a scale factor of 1/2 to change the dimensions? Select all that apply.

• The new length is 16 in.

• The new perimeter is 11 in.

• The new perimeter is 21 in.

• The new width is 1.5 in.

• The new length is 4 in.

Tags

CCSS.7.G.A.1