Ratio and Proportions and Geometry

Solve the proportion.

• -3

• -1.5

• 2.1

• 9

A triangle’s angle measures are in the extended ratio of 2 : 4 : 9. Find the measures of the angles.

• 20^o, 40^o, 90^o

• 24^o, 48^o, 108^o

• 24^o, 32^o, 124^o

• 20^o, 40^o, 100^o

Solve for k

• 165

• 17

• 1/17

• 1/165

• x = 1/24
• x = 29
• x = 28
• x = 3/2

What is it called when you set two ratios equal to each other?

• Proportion

• Fraction

• Ratio

• Congruent

Solve the proportion.

• -5

• 2

• 7

• 6

In a certain apartment building, the ratio of tenants to cars is 3:5. If there are 30 tenants, how many cars are there?

• 35

• 60

• 18

• 50

In an animal shelter, the ratio of dogs to cats is 5 to 3. There are 25 dogs.  Write and solve a proportion to find the number c of cats.

• c=15

• c=18

• c=21

• c=16

Solve the proportion.

• k=5

• k=3.3333333

• k=60

• k=90

• 3
• 5.3
• 1.08
• 27