Ratios Similar Figures

Solve the proportion.

• k=5

• k=3.3333333

• k=60

• k=90

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

• x = 12

• x = 3

• x = 40

• x = 4

Choose all ratios that are equivalent to 3:4.

• 6 ducks to 9 fish

• 6 ducks to 8 fish, 9 parts of cleaner to 12 parts of water, 27 students in class of 36 students

• 4 cups of milk for every 3 cups of flour, 6 ducks to 8 fish

• 9 parts cleaner to 12 parts water, 6 ducks : 9 fish

What is the ratio of red apples to green apples

• 7 apples to 3 green

• 4 red apples to 7 apples

• 4 red apples to 3 green apples

• 3 green apples to 4 red apples

Are the two figures similar? (check all ratios to see if they are equal)

• yes

• no

Tell whether the two figures are similar. Explain your reasoning.

• Yes, similar because they are the same shape and side lengths are proportional.

• No, not similar because they are the same shape, but side lengths are not proportional.

• Yes, same shape

• No, different sizes

This two figures are...

• congruent and similar

• similar, but not congruent

• congruent, but not similar

• Neither congruent nor similar

Find the ratio (blue to red) of the area.

• 4/7

• 7/4

• 49/16

• 16/49

Are the two figures similar?

• yes

• no

Do the ratios form a proportion?

• Yes, they form a proportion.

• No, they do not form a proportion.