Changing Scales

Michel uses the scale drawing and the scale factor to enlarge a square that has a side length of 12 in. Which proportion could Michel use to solve the side length, x, of the enlarged square?

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Tags

CCSS.7.G.A.1

Sienna planned a rectangular pool, as shown in the scale drawing.She decides to change the length, the longer side of the pool, from 22 ft to 27.5 ft. Which expression finds the change in the scale factor?

Tags

CCSS.7.G.A.1

Uma makes a scale drawing of a patio. The drawing below shows the two scales she used to plan two patios of different sizes. Which shows the correct lengths of side C in both scales?

• Scale 1: 45 m; Scale 2: 60 m

• Scale 1: 60 m; Scale 2: 45 m

• Scale 1: 36 m; Scale 2: 27 m

• Scale 1: 27 m; Scale 2: 36 m

Tags

CCSS.7.G.A.1

Gigi makes a scale drawing of a patio. The drawing below shows the two scales she used to plan two patios of different sizes. Which shows the correct dimensions of the rectangle in both scales?

• Scale 1: 40 ft by 56 ft; Scale 2: 35 ft by 40 ft

• Scale 1: 56 ft by 25 ft; Scale 2: 35 ft by 40 ft

• Scale 1: 35 ft by 25 ft; Scale 2: 56 ft by 40 ft

• Scale 1: 56 ft by 40 ft; Scale 2: 35 ft by 25 ft

Tags

CCSS.7.G.A.1

The scale drawing of a rectangular room will be enlarged by a scale factor of 4 to create the actual room. The actual area of the room will be 150 square feet. Which expression finds the area of the scale drawing?

Tags

CCSS.7.G.A.1

The area of the scale model of a playground is 6 square yards. The scale model is enlarged by a scale factor of 3 to create the actual playground. What is the area of the actual playground?

• 18 square yards

• 54 square yards

• 108 square yards

• 324 square yards

Tags

CCSS.7.G.A.1

The triangle has been reduced by a scale of 0.4. What is the area of the reduced triangle?

Tags

CCSS.7.G.A.1

• 0.18 square units

• 1.8 square units

• 18 square units

• 180 square units

Tags

CCSS.7.G.A.1

Which is the scale factor proportion for the reduction shown?

Tags

CCSS.7.G.A.1

Which is the scale factor proportion for the enlargement shown?

Tags

CCSS.7.G.A.1