Scale Factor test review

A rectangle has dimensions 4 cm by 6 cm. If the scale factor is 3, what will be the new dimensions of the rectangle?

• 12 cm by 18 cm

• 7 cm by 9 cm

• 8 cm by 12 cm

• 10 cm by 15 cm

A triangle has side lengths of 5 cm, 7 cm, and 9 cm. If the triangle is enlarged by a scale factor of 2, what will be the length of the longest side of the new triangle?

• 14 cm

• 18 cm

• 9 cm

• 11 cm

A map uses a scale of 1 inch : 20 miles. If two cities are 4.5 inches apart on the map, what is the actual distance between them?

• 45 miles

• 90 miles

• 18 miles

• 80 miles

On a map with a scale of 1 cm : 50 km, the distance between two locations is 7 cm. How far apart are the locations in kilometers?

• 350 km

• 700 km

• 70 km

• 140 km

If a triangle’s sides are scaled by a factor of 3, by what factor does its perimeter increase?

• 3

• 6

• 9

• 12

A map has a scale of 1 cm : 25 miles. If the real distance between two towns is 75 miles, what is the distance between them on the map?

• 2.5 cm

• 3 cm

• 5 cm

• 7.5 cm

A triangle with sides 8 cm, 15 cm, and 17 cm is enlarged by a scale factor of 2. What are the new side lengths of the triangle?

• 16 cm, 30 cm, 34 cm

• 18 cm, 32 cm, 34 cm

• 8 cm, 15 cm, 17 cm

• 12 cm, 25 cm, 29 cm

A model of a flagpole has a scale of 1 in.= 4 ft. If the model pole measures 12 inches, how tall is the actual pole?

• 16 feet
• 3 feet
• 48 feet
• 9 feet

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

Scale Factor of ½ is __________________ .

• Reduction
• Enlargement