Similarity of Polygons and Triangles and Proportion

How do these triangles appear to be similar?
(Hint: Look for non-labeled parts!)

• AA

• SAS

• SSS

• Not Similar

Are the triangles similar?

• Yes

• No

What is the similarity statement for the triangle pair?

• ΔXYZ~ΔNEW

• ΔXZY~ΔNWE

• ΔZYX~ΔENW

• ΔYZX~ΔNWE

The polygons in each pair are similar. Find the scale factor of the smaller figure to the larger

figure.

• a

• b

What is the scale factor from ABCD to MNOP?

• 2/3

• 3/2

• 2

• 3

Determine whether the triangles are similar by AA~, SSS~, SAS~, or not similar.

• AA

• SSS

• SAS

• Not similar

Determine whether the triangles are similar by AA~, SSS~, SAS~, or not similar.

• AA

• SSS

• SAS

• NOT SIMILAR

Determine whether the triangles are similar by AA~, SSS~, SAS~, or not similar. Select all that applies.

• AA

• SAS

• SSS

• not similar

Find the value of X.

• 4

• 6

• 12

• 7

an equation that states that two ratios are equal

• geometric mean

• proportion

• ratio