Scale Factors and Proportions

Robbie made a scale drawing of a neighborhood park. A soccer field in the park is 14 inches long in the drawing. The actual field is 98 yards long. What is the scale of the drawing?

1 inch = ___ yards
____ = ____

• 1372
• 5
• 14
• 7

An architect is drawing a house and decides that 1.5 inches = 2 feet in his drawing.
In real life the living room has a length of 17 feet. How long will the length of the room be on his blueprint (drawing)?
____ = ____

• 12.75 inches
• 15.5 inches
• 22.67 inches
• 51 inches

If the original is 12 units and the scale factor is 1/4 what is the size of the scale drawing?

• 300
• 4.8
• 3
• 4

A scale drawing that measures 8 units wide and an original that measures 4 units wide has a scale factor of...

• 2:1
• 8:1
• bigger
• 1:2

What is the scale factor from triangle ABC to triangle DEF?

• 4/1
• 7/3
• 2/1
• 10/3

What is the scale factor from triangle ABC to triangle DEF?

• 4
• 3/2
• 2/3
• 1/2

If the scale factor is 4, what is the measurement of x?

• 20 m
• 24 m
• 16 m
• 4 m

A rectangle has a perimeter of 15 inches. The image is created with a scale factor of 2. What is the new perimeter?

• 17
• 60
• 30
• 15

A rectangle has a side length of 60. The image is created with a scale factor of 1/4. What is the new area?

• 240
• 64
• 15
• 30

Megan drew a scale drawing of a house and its lot. The scale she used was 1 inch = 2 feet. The backyard is 78 feet long in real life. How long is the yard in the drawing?
____ = ____

• 39 inches
• 156 inches
• 38 inches
• 157 inches