Proportions with Similar Shapes

Using a proportion, find the height of the tree.

• x = 0.0625 ft.

• 12 ft

• x = 16 ft.

• 48 ft

Solve for X.

• 2 ft

• 3 ft

• 4 ft

• 6 ft

Find missing side

• 5

• 7

• 9

• 11

To find the height of a very tall pine tree, you measure your shadow and the tree's shadow.  How tall is the tree?

• 144 feet

• 72 feet

• 36 feet

Determine whether the figures are similar.

• yes, they are proportional

• no, they are not proportional

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.

Find the length of x

• x = 1

• x = 2

• x = 7

• x = 1/7

What is the scale factor from ΔDEF to ΔABC?

• 1/2

• 7/3

• 2

• 10/3

The blueprint(drawing) of this house has a length of 6 inches.  The actual house has a length of 18 feet.  What is the scale used?

• 1 inch: 3 feet

• 1 inch: 6 feet

• 3 inches: 6 feet

• 3 inches: 12 feet

What is the measure of the side that corresponds with FE? 

• 10

• 6

• 8

• 15