7th Grade Unit 1 Review Assessment

If the scale factor is less than one, the new figure will be

• an enlargement
• a reduction
• a scale factor
• bigger

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CCSS.8.G.A.3

What is the scale factor from ΔDEF to ΔABC?

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CCSS.8.G.A.4

CCSS.HSG.SRT.A.2

The two rectangles are scale drawings. What is the measurement of x?

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CCSS.7.G.A.1

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

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CCSS.7.G.A.1

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

Answer explanation

For every 1 cm, it is 50 meters. The longer side is 6.3 cm therefore multiply 50 x 6.3= 315

Tags

CCSS.7.G.A.1

There is a triangle with side lengths of 6 cm, 8 cm, and 10 cm. Select ALL of the sets of side lengths that are scaled copies of the original triangle.

• 18 cm, 24 cm, and 30 cm

• 9 cm, 12 cm, and 15 cm

• 15 cm, 20 cm, and 25 cm

• 10 cm, 18 cm, and 24 cm

Tags

CCSS.8.G.A.3

The distance between two cities on a map is 4.125 inches.  Find the actual distance if the scale on the map is 2 inches = 40 miles.

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CCSS.6.RP.A.3B

On a map, Memphis, Tennessee, and Jackson, Mississippi, are 5 inches apart. The distance between the cities is actually 210 miles.

What scale was used to create the map?

• 42 inches = 1 mile
• 1 inch = 42 miles
• 40 inches = 1 mile
• 
  1 inch = 40 miles

Answer explanation

5 inches = 210 miles

5/5 = 210/5

1 inch = 42 miles

Tags

CCSS.7.G.A.1

From Denver to Chicago = 3 in. If the scale is 1 in = 300 miles, find the actual distance.

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CCSS.6.RP.A.3B

What's another way to write 5:7

• 5 to 7
• 7 to 5

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CCSS.6.RP.A.1

CCSS.6.RP.A.2