Ratios Proportions and Scale Drawings

Find the perimeter of the large triangle.

• 24

• 36

• 12

• 54

Find side length X.

• 16

• 18

• 2.4

• 15

What is the scale factor?

• 4

• 25

• 5

• 6

On a map, the distance between Louisville, Kentucky, and Nashville, Tennessee, is 1 3/4 inches. The scale of the map is 1 in:100 mi. What is the actual distance between the two cities?

• 200 miles

• 175 miles

• 100 miles

• 125 miles

The original perimeter of a rectangle is 30cm, if we enlarge it by a scale factor of 4 what is the new perimeter?

• 120

• 480

• 1920

If the perimeter of a rectangle was 20in and now it is is 80in, what is the scale factor that was used?

• 4

• 2

• 40

• 20

Edgar drew a scale drawing of the town library. The scale of the drawing was 5 centimeters : 2 meters. The parking lot is 34 meters wide in real life. How wide is the parking lot in the drawing?

• 85 cm

• 68 cm

Norris is doing renovations in the living room of his home. The length of the room is 22 feet, and the width of the room is 19 feet. A proportional scale drawing of the room was created that has width of 38 inches. What is the length in the scale drawing?

• 51 in

• 44 in

• 50 in

• 59 in

A blueprint was using a scale of 3cm=4.5m. Find the actual length if it is 5cm on the drawing.

• 7.5 m

• 13.5 m

• 1.5 m

• 1.7 m

Scale is 1cm = 8km. Hatboro and Smithville are 24cm apart on the map, how far apart are they?

• 87 km

• 216 km 

• 33 km

• 192 km