Proportionality and Dilation

The triangles are similar, solve for the question mark.

• 8
• 12.5
• 18
• 24

Find the height of the tree.

• 8 ft
• 12 ft
• 13 ft
• 15 ft

Are the triangles similar?

• Yes
• No

Find side length X.

• 16
• 18
• 2.4
• 15

To measure the distance across a pond, a surveyor locates points A, B, C, D, and E as shown.  What is AB to the nearest meter?

• 10
• 12
• 15
• 18

All corresponding sides are proportional (same ratio) in similar figures.

• True
• False

All corresponding angles are congruent in similar figures.

• True
• False

All corresponding sides are congruent in any similar figure.

• True
• False

Two shapes that are congruent are also similar

• False
• True

Two shapes that are similar are also congruent

• True
• False