Scale Factor

The scale drawing of a rectangular city park measures 10.0 cm by 5.0 cm. The scale of the drawing is 1.0 cm = 4.5 m. What is the area, in square meters, of the park?

Tags

CCSS.7.G.A.1

Irvin made a scale drawing of the fence he is building. He used a scale of 1 cm = 5 feet. What is the perimeter of the actual fence Irvin is building?

• 108 feet

• 130 feet

• 169 feet

• 191 feet

Tags

CCSS.7.G.A.1

Elaine drew the model below of her room and bed. The scale of the model is 1 in. = 2 ft. What is the approximate area of her actual bed?

• 7 ft²

• 14 ft²

• 24 ft²

• 28 ft²

Tags

CCSS.7.G.A.1

An architect is making a floor plan for an apartment. The floor plan will include a Great Room with a length of 30 feet and a width of 20 feet. On her floor plan, 1/4 inch will represent 1 foot of the room's actual width. What will be the width of the Great Room, in inches, on her floor plan?

• A. 5.0

• B. 7.5

• C. 10.0

• D. 20.0

Tags

CCSS.6.RP.A.3D

At Mount Rushmore, the sculpture of George Washington's head is approximately 60 feet in height. If George Washington's head was approximately 3/4 foot in height and his nose was 2 inches long, how long is the nose on the sculpture at Mount Rushmore?

• A. 2 1/2 feet

• B. 1 3/5 feet

• C. 7 feet

• D. 13 1/3 feet

Tags

CCSS.7.G.A.1

Lola made a scale drawing of her classroom. It is the shaded part of the drawing below. What is the actual length of the classroom?

• A. 4 feet

• B. 7 feet

• C. 21 feet

• D. 28 feet

Tags

CCSS.7.G.A.1

Sheena made a scale drawing of her classroom using a scale of 1 inch = 10 feet. One wall of the classroom in the drawing is 4 inches long. Which proportion can be used to find x, the length of the actual wall, in feet?

• 1/10 = 4/x

• 1/x = 4/10

• 4/x = 1/10

• 12/x = 10/1

Tags

CCSS.7.RP.A.2C

Hannah is drawing a map using the scale (1/2) inch = 20 miles. The towns of Denton and Harper are 56 miles apart. What is the distance in inches between the two cities on the map?

• A. 1.4

• B. 2.8

• C. 3.3

• D. 5.6

Tags

CCSS.6.RP.A.3B

The Great Pyramid in Egypt is about 147 meters tall. Rosa is building a scale model of the Great Pyramid using the scale 1 inch = 10 meters. Which of the following proportions can Rosa use to find the height in inches, that her scale model should be?

• A. (x/10 = 1/147)

• B. (x/10 = 147/10)

• C. (x/147 = 1/10)

• D. (x/147 = 10/12)

Tags

CCSS.7.RP.A.2C

Mrs. Barron’s kitchen is shaped like a rectangle. She has a scale drawing of her kitchen with dimensions 6 inches by 4 inches. The scale of the drawing is (1/2) inch = 1 foot. What is the perimeter of Mrs. Barron’s actual kitchen?

• A. 12 feet

• B. 20 feet

• C. 24 feet

• D. 40 feet

Tags

CCSS.7.G.A.1