Area Perimeter Scale Factor

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

• an enlargement

• a reduction

• a scale factor

To find the area of the second figure, you multiply ________________.

• length x width 

• perimeter x perimeter

• scale factor x scale factor

How does scale factor change the area?

• by the scale factor

• by the scale factor squared

• by the scale factor cubed

If a square's side lengths are halved (scale factor of 1/2 is used), then which of the following statements about its area will be true?

• The ratio of the old area to the new area will be 1/8

• The ratio of the old area to the new area will be 1/2.

• The ratio of the old area to the new area will be 1/4.

• The ratio of the old area to the new area will be 4/1.

What is the area of the scaled copy?

• 20 sq in

• 42 sq in

• 49 sq in

• 294 sq in

Amanda made a scale drawing of a square garden, which has a side length of 25 feet. She used the scale 2 inches = 5 feet.

What will be the area of the scale drawing?

• 10 in²

• 25 in²

• 100 in²

• 484 in²

If you want to find the scale factor from one figure to another, which formula should you use?

• New/Original

• Original/New

• Part/Whole

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

• 300 miles

• 1000 miles

• 900 miles

• 600 miles

If the pole measures 12 inches, how tall is the actual pole?

• 16 feet

• 3 feet

• 48 feet

• 9 feet

Solve for X.

• 2 ft

• 3 ft

• 4 ft

• 6 ft