Find the Missing Side Using Proportions

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? Hint: the figures are similar triangles.

• 8 feet

• 72 feet

• 36 feet

• 144 feet

Solve for f.

• 6

• 4

• 3

• 8

Solve for X.

• 2 ft

• 3 ft

• 4 ft

• 6 ft

Find y.

• 144

• 18

• 72

• 12

Which side length corresponds with EF?

• ML

• LM

• OL

• EH

• 15
• 13
• 11
• 17

Solve the proportion.

• k=5

• k=3.3333333

• k=60

• k=90

Solve for X.

• 2 ft

• 3 ft

• 4 ft

• 6 ft

Solve the proportion.

• q=2

• q=9

• q=4.5

• q=6

Find missing side

• 5

• 7

• 9

• 11