Similarity and Proportionality

Select the proportion that shows the Triangle Proportionality Theorem.

Which triangles are similar to triangle A?

• B

• C

• Both

• None

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

• equal

• congruent

• proportional

• none of these

Find x.

• 11

• 55

• 275

Find x.

• 18

• 21

• 11.8

Find x.

• 45

• 9

• 5

• 15

Find the missing length indicated. Write down your work.

• 30

• 25

• 45

• 50

Find the missing length indicated.

Write down your work.

• 6

• 10

• 5

• 12

Two objects that are the same shape but not the same size are _______.

• Congruent

• Vertical

• Similar

• Complementary