Scale Drawing Perimeter and Area

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CCSS.7.G.A.1

State the sclae of the scale drawing

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CCSS.7.G.A.1

Determine the scale in the form of 1:n

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CCSS.7.G.A.1

The actual length of a river is 2km. If the river is drawn on a map scale 1:40 000, find the length, in cm, of the river on the map.

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CCSS.7.G.A.1

What is the scale factor from ΔDEF to ΔABC?

• 1/2

• 7/3

• 2

• 10/3

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CCSS.8.G.A.4

CCSS.HSG.SRT.A.2

A scale factor greater than one creates ....

• a reduction

• an enlargement

• an exact copy

• none of the above

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CCSS.8.G.A.3

A scale factor less than one creates ....

• a reduction

• an enlargement

• an exact copy

• none of the above

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CCSS.8.G.A.3

How does scale factor change the perimeter?

• by the scale factor

• by the scale factor squared

• by the scale factor cubed

• scale factor does not change the perimeter

Tags

CCSS.7.G.A.1

How does scale factor change the area?

• by the scale factor

• by the scale factor squared

• by the scale factor cubed

• scale factor does not affect the area

Tags

CCSS.7.G.A.1

The perimeter of a rectangle was 121m, and was reduced to 11m. What was the scale factor used to reduce the shape?

• 11

• 12

Tags

CCSS.7.G.A.1