Similar Figures Solving for Missing Sides

To find the height of a very tall pine tree, you place a mirror on the ground and stand where you can see the top of the pine tree.  How tall is the tree?

• 144 feet

• 72 feet

• 36 feet

Solve for f.

• 6

• 4

• 3

• 8

Are the following similar? Why or why not?

• Yes

• No, the corresponding angles are not equal.

• No, the ratios of the corresponding sides are not equal.

Which side length corresponds with EF?

• ML

• LM

• OL

• EH

For the pair of similar figures, find the length of the side marked with a variable.

• 1.8 in

• 2.1 in

• 9.8 in

• 9.3 in

Marvin's son is 3 ft tall. He casts a shadow of 1 foot. Marvin casts a shadow of 2.5 ft. How tall is Marvin?

• 3 ft

• 7.5 ft

• 1.2 ft.

• 0.8 ft.

Find the height of the tree.

• 8 ft

• 12 ft

• 13 ft

• 15 ft

Which proportion is true?

Which proportion is true?

Matching sides are called

• Corresponding Sides

• Corresponding Angles

• The Same

• Congruent Sides