Similar Figures & Parallel Lines Cut by a Transversal

• ABC and DEF
• ABC and GHI
• DEF and GHI
• None

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.

The pair of figures is similar. Find the missing side.

• x = 20
• x = 12
• x = 5
• x = 4

The pair of figures is similar. Find the missing side.

• x = 10
• x = 4
• x = 2
• x = 5

The pair of figures is similar. Find the missing side.

• x = 22
• x = 2
• x = 16
• x = 8

Gwen scans a photo that is 4 in. wide by 6 in. tall into her computer. If she scales the height down to 5 in., how wide should the similar photo be?

• 3 in
• 3.3 in.
• 4 in
• 1 in

A photo is 12 in. wide by 18 in. tall. If the width is scaled down to 9 inches, how tall should the similar photo be? 

• 15 in
• 0.67
• 13.5 in
• 2

All angles in similar figures are congruent.  

• True
• False

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

Are the triangles similar?

• Yes
• No