Similarity Postulates and Similar Figures

Two objects that are the same shape but not the same size are _______.

• Congruent

• Vertical

• Similar

• Complementary 

Sides in similar figures must be proportional.  

• True

• False 

Are the triangles similar?

• Yes

• No

Solve for X.

• 2 ft

• 3 ft

• 4 ft

• 6 ft

• A

• B

• C

• D

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

• AA

• SAS

• SSS

• Not Similar

How do these triangles appear to be similar?

• AA

• SAS

• SSS

• Not Similar

Are the two triangles similar? If so, state how you know.

• Yes, by AA~

• Not similar

• Yes, by SAS~

• Yes, by SSS~

Find the value of x that makes ΔABC~ΔRST.

• x=8

• x=1/3

• x=12

• x=11

The triangles are similar by...

• SAS

• Not Similar

• ASA

• SSS