Open Up Grade 7 Unit 1 Review

Here is a figure that looks like the letter A, along with several other figures. Which figures are scaled copies of the original A? Explain how you know.

• Figure 1

• Figure 2

• Figure 3

• Figure 4

Tags

CCSS.8.G.A.3

Figure B is a scaled copy of Figure A. Select all of the statements that MUST be true:

• Figure B is larger than Figure A.

• Figure B has the same number of edges as Figure A.

• Figure B has the same perimeter as Figure A.

• Figure B has the same number of angles as Figure A.

• Figure B has angles with the same measures as Figure A.

Tags

CCSS.7.G.A.1

CCSS.7.RP.A.2

Triangle S and Triangle L are scaled copies of one another. What is the scale factor from L to S?

• $\frac{3}{10}$

• $2$

• $1.5$

• $\frac{4}{8}$

Tags

CCSS.6.RP.A.3A

A local park is in the shape of a square. A map of the local park is made with the scale 1 inch to 200 feet. If the park is shown as a square on the map, each side of which is one foot long, how long is each side of the square park?

• 2,000 ft

• 1,800 ft

• 2,800 ft

• 2,400 ft

Tags

CCSS.7.RP.A.2C

Here is an unlabeled rectangle, followed by other quadrilaterals that are labeled. Select all quadrilaterals that are scaled copies of the unlabeled rectangle.

• A

• C

• D

• E

• F

Tags

CCSS.7.G.A.1

CCSS.7.RP.A.2

If Quadrilateral Q is a scaled copy of Quadrilateral P created with a scale factor of 3, what is the perimeter of Q?

• 158

• 186

• 180

• 165

Tags

CCSS.7.RP.A.2C

A model airplane is built at a scale of 1 to 72. If the model plane is 8 inches long, how many feet long is the actual airplane?

• 280 ft

• 8 ft

• 642 ft

• 576 ft

Tags

CCSS.7.RP.A.2C

Elena finds that the area of a house on a scale drawing is 25 square inches. The actual area of the house is 2,025 square feet. What is the scale of the drawing?

• 80

• 75

• 92

• 81

Tags

CCSS.6.RP.A.3B

Scale: 1in.=7ft. The actual width of the backyard is 49 ft, how wide is it in the drawing?

• 14 in

• 7 in

• 42 in

• 56 in

On the map, from Denver to Chicago is 3 in. If the scale is 1 inch = 300 miles, find the actual distance.

• 300 miles
• 1000 miles
• 900 miles
• 600 miles