Review for Rates, Proportions, Scale Drawings

Spencer measured a house and its lot and made a scale drawing. He used the scale 3 inches : 2 feet. In the drawing, the deck is 90 inches long. What is the length of the actual deck?

• 60 ft

• 6 ft

• 180 ft

• 270 ft

Tags

CCSS.7.RP.A.2C

Jonathan drew a scale drawing of a house. The scale of the drawing was 1 millimeter : 2 meters. If the actual width of the garage is 8 meters, how wide is the garage in the drawing?

• 4 mm

• 16 mm

Tags

CCSS.7.RP.A.2C

Edgar drew a scale drawing of the town library. The scale of the drawing was 5 centimeters : 2 meters. The parking lot is 34 meters wide in real life. How wide is the parking lot in the drawing?

• 85 cm

• 68 cm

Tags

CCSS.7.RP.A.2C

A building is 360 feet tall. On a scale drawing, 1/4 inch = 10 feet. What is the height of the building in the scale drawing?

• 15 in

• 9 in

• 7 in

• 13 in

Tags

CCSS.7.RP.A.2C

A rectangular garden is 45 ft wide and 70 ft long. On a blueprint, the width is 9 in. Identify the length on the blueprint. 

• 7 in

• 9 in

• 12 in

• 14 in

The original perimeter of a rectangle is 30cm, if we enlarge it by a scale factor of 4 what is the new perimeter?

• 120

• 480

• 1920

Tags

CCSS.7.G.A.1

Scale factor is _________

• the number you multiply the original shape by in order to get the scale copy

• the number you divide the original shape by in order to get the scale copy

• the number you add the original shape by in order to get the scale copy

• the number you subtract the original shape by in order to get the scale copy

Tags

CCSS.7.G.A.1

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

• 2

• 3/2

• 2/3

• 1/2

Tags

CCSS.7.G.A.1

Irene measured a shopping center and made a scale drawing. The scale she used was 2 inches : 1 foot. If a bakery in the shopping center is 104 inches in the drawing, how long is the actual bakery?

• 52 ft

• 208 ft

Tags

CCSS.7.RP.A.2C

This scale drawing shows a parking lot. What is the length of the longer side of the actual lot?

• 63 m

• 235 m

• 315 m

• 630 m

Tags

CCSS.7.G.A.1