Using Scale Factor to Find Area and Perimeter

Practice Quiz - scaling sides and area with a scale factor

Multiple Choice

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

• a reduction

• an enlargement

• a scale

• not proportional

Multiple Choice

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

• an enlargement

• a reduction

• a scale factor

• bigger

Multiple Choice

An architect makes a scale drawing of a pool. The scale she uses has every 6 meters equal 2 centimeter. what is the scale in this word problem?

• 6 m : 2 cm

• 3 m : 1 cm

• 6/2

• 3/1

Multiple Choice

Whittemore Park Middle School is 30 feet tall. A 5 inch tall scale model of the school was made by the art club. What is the scale of the model?

• 5 inch = 30 feet

• 5 inch = 30 inches

• 5 feet = 30 feet

Multiple Select

How do you find the scale factors if given the scale 6 : 42 (pick two)

• $$6\ \times\ ?\ =42$$

• $$6\times42=$$

• 
  

  $$42\ \div\ 6\ \equiv$$

• $$6+42\ =$$

Multiple Choice

if the scale is 5 in to 15 mi, There are two scale factors which one do you need to get to inches?

• 5

• 17.5

• 1/3

• 3

Multiple Choice

if the scale is 40 ft : 10 cm, There are two scale factors which one do you need to get to feet?

• 1/4

• 4

• 40

• 10

Multiple Choice

What is the area of a scale drawing of a 12 x 24 rectangle,

if K = 1/3

(K = scale factor)

• 32 ft²

• 288 ft²

• 96 ft²

Fill in the Blank

If K = 1/4,

What is the area of a scale drawing of a 12 ft by 24 ft rectangle?

(K = Scale Factor)

only put the number in the answer

Fill in the Blank

If the scale factor is 3, What is the missing side length?

Fill in the Blank

Find the missing side length.

Multiple Select

What is the formula to scale side lengths (W & L)? (pick two)

• side length (W & L) x scale factor = scaled side length

• Given area x (scale factor)² = scaled area

• W x K² = W (scaled)

• L x K = L (scaled)

Multiple Select

What is the formula to scale area? (pick two)

• Given area x scale factor = scaled area

• Given area x (scale factor)² = scaled area

• A x K² = A

• A x K = A

Fill in the Blank

scale 4 : 32

scale up a 3 by 4 rectangle.

What is the area if you scale up the rectangle?

Fill in the Blank

scale 2.5 : 10

W = 32, L = 28

What is the area of a scaled down rectangle