Proportions Scale Factors and Similar Figures

Find missing side

• 5

• 7

• 9

• 11

The scale drawing car length is 3 cm. If the scale is 1 cm:4 ft, what is the actual car length?

• 12 feet

• 16 feet 

• 10 feet

• 4 feet

The pair of figures is similar. Find the missing side.

• x = 1

• x = 3

• x = 9

• x = 5

The actual distance between Louisville, Kentucky, and Nashville, Tennessee, is 175 miles. The scale of the map is 1 in:100 mi. What is the distance on the map between the two cities?

•   3/4 inches

• 1 inch

• 3/4 inch

• 1/2 inch

What is the scale factor of the large triangle to the small triangle?

• 2 to 1

• 3 to 4

• 1 to 2

• 4 to 3

What is the scale factor?

• 1/2

• 7/3

• 2

• 10/3

What is the scale factor from ABCD to MNOP?

• 2/3

• 3/2

• 2

• 3

Shannon is making three different sizes of blankets from the same material. The first measures 2.5 feet by 2 feet. She wants to enlarge it by a scale factor of 2 to make the second blanket. Then she will enlarge the second one by a scale factor of 1.5 to make the third blanket. What are the dimensions of the third blanket?

• 2.5 feet by 2 feet

• 7.5 feet by 6 feet

• 7.5 by 6

• 5 feet by 4 feet

Mathematical Equivalence

OFF

Mathematical Equivalence

OFF