Similarity

The triangles are similar, solve for the question mark.

• 8

• 12.5

• 18

• 24

How do these triangles appear to be similar?

• AA

• SAS

• SSS

• Not Similar

What is the scale factor if the triangle on the left is the original?

• 2

• 3/2

• 2/3

• 1/2

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

Q1. How long is the object?

• 3 inches

• 5 inches

• 90 inches

• 4 inches

All angles in similar figures are congruent.  

• True

• False

If two figures are similar their angles are______.

• proportional

• congruent

• supplementary

• complementary

• A
• B
• C
• D

Find the missing length indicated. Leave your answer in simplest radical form.

• 64

• 12

• 9

• 100

Find the ratio (red to blue) of the area.

• 11/6

• 6/11

• 121/36

• 36/121