Similarity

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

• x = 20
• x = 12
• x = 5
• x = 4

Complete each proportion.
CB / DM  =  AC / ?

• BM
• MA
• BC
• AD

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
• 8 feet

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 y.

• 144
• 18
• 72
• 12

Solve for x.

• 21
• 14
• 12
• 18

In similar Polygons, corresponding sides are ___ and corresponding angles are ___. (Fill in the blanks)

• congruent, proportional 
• proportional, congruent 
• congruent, congruent
• proportional, proportional

A figure must have the same shape and size to be _________.

• Congruent

• Similar

• Side Angle Side

Matching sides are called

• Corresponding Sides
• Corresponding Angles
• The Same
• Congruent Sides

Find side length X.

• 30
• 25
• 15
• 40