Scale Factors and Area

A model of a house was built using the scale 5 in:25 ft. If a window in the model is 1.5 in. wide, how wide is the actual window?

• 90 ft

• 7.5 ft 

• 4.5 ft

• 45 in

Tags

CCSS.7.G.A.1

A rectangle has the dimensions 4cm by 5cm. A scale factor of 3 is used to enlarge the rectangle. What is the new area?

• 20 cm²

• 60 cm²

• 180 cm²

• 100 cm²

Tags

CCSS.7.G.A.1

Jamie made a scale drawing of his apartment building.  The building is 300 ft tall.  He wants his scale to be 1 inch : 10 ft.  How tall should his building be in his scale drawing?

• 25 inches

• 60 inches

• 1/30 inch

• 30 inches

Tags

CCSS.7.G.A.1

A pool is 10 meters wide and 20 meters long. If I draw it at a scale of 1 cm to 2 m, how WIDE is my drawing?

• 5 cm

• 10 cm

• 20 cm

• 40 cm

Tags

CCSS.7.G.A.1

What is the scale factor used to get from the small rectangle to the large rectangle?

• 4

• .25

• 21

• 5/7

Tags

CCSS.7.G.A.1

Triangle PRQ is the pre-image. Triangle SUT is the image. What is the scale factor to get from the small triangle to the large triangle?

• 2

• 1.5

• .67

• 8/12

Tags

CCSS.7.G.A.1

What is the area of the small triangle PQR?

• 48

• 30

• 24

• 14

Tags

CCSS.6.G.A.1

If the scale factor to get from the small triangle to the large triangle is 1.5 and the area of the small rectangle is 24 units squared. What is the area of the large rectangle?

• 54

• 48

• 36

• 108

Tags

CCSS.7.G.A.1

If the scale factor to get from the small rectangle to the large rectangle is 4 and the perimeter of the small rectangle is 24 units. What is the perimeter of the larger rectangle?

• 112

• 24

• 96

• 32

Tags

CCSS.7.G.A.1

What is the scale factor from the smaller quadrilateral to the larger?

• scale factor = 4

• scale factor = 10

• scale factor = 3

• scale factor = 2

Tags

CCSS.7.G.A.1