Similarity

What do you call an equation which shows that two ratios are equal?

• Ratio

• Proportion

• Fraction

• Similar

Solve the proportion.

• 3

• 12

• 15

• 60

Solve the proportion.

• 11

• 11/2

• 13

• 22

Solve the proportion.

• 8

• 9

• 14

• 15

The ratio of pass to fail in math class is 5:1. If there are 90 students in the class, how many are passing?

• 75 students are failing

• 75 students are passing

• 15 students are passing

• 45 students are passing

If two figures are similar, the corresponding sides are ______________.

• equal

• congruent

• proportional

• perpendicular

If two figures are similar their angles are______.

• proportional

• congruent

• supplementary

• perpendicular

ΔSQR∼ΔSPT. Which choice below lists two corresponding sides?

• SP and SR

• PS and RS

• QS and PT

• TP and RQ

Solve for x. The two figures are similar.

• 6

• 7

• 8

• 9

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

• 12

• 40

• 3

• 4