Scale Drawings Area and Perimeter

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

What is the measurement of x?

• 21

• 1.25

• 20

• 4

What is the scale factor if the triangle on the left is the original?

• 2

• 3/2

• 2/3

• 1/2

The width of the parking lot is shorter than the length. The width of the actual parking lot is 48 feet. How many feet of the parking lot are represented by 1 centimeter on the scale drawing?

• 15

• 16

• 3.75

• 153.6

The width of the parking lot is shorter than the length. The width of the actual parking lot is 48 feet. Based on the scale drawing, what is the length, in feet, of the actual parking lot?

• 40.96

• 192

• 4

• 195

What is the scale factor from ΔDEF to ΔABC?

• 1/2

• 7/3

• 2

• 10/3

How does scale factor change the perimeter?

• by the scale factor

• by the scale factor squared

• by the scale factor cubed

• scale factor does not change the perimeter

How does scale factor change the area?

• by the scale factor

• by the scale factor squared

• by the scale factor cubed

• scale factor does not affect the area

The perimeter of a rectangle was 121m, and was reduced to 11m. What was the scale factor used to reduce the shape?

• 11

• 12

The original area of a rectangle is 35 in². If the rectangle is enlarged by a scale factor of 3, what is the new area?

• 105 in²

• 11.6 in²

• 315 in²

• 210 in²