Chapter 5 Ratio Proportion and Similar Figures

Are the triangles similar? If so, what similarity shortcut is used? Show all work.

• Similar.  SAS

• Similar.  AA

• Similar. SSS

• Not Similar

Are the triangles similar? If so, what similarity shortcut is used?  Show all work.

• Similar.  SAS

• Similar.  AA

• Similar.  SSS

• Not Similar

The measures of the angles in a triangle are in the extended ratio of 4:3:2.  What is the measure of the largest angle?

• 20 degrees

• 60 degrees

• 90 degrees

• 80 degrees

Solve the proportion.

• n=6

• n=24

• n=7

• n=8

Use the table to express the ratio in simplest form: Ash to Maple

• 2/3

• 3/2

• 18/12

• 12/18

Similarity Ratio: _

• 2/3

• 1/2

• 2

• 3

Complete each proportion.
AB / BM  =  ? / CD

• BC

• AC

• MD

• MC

Determine if the triangles are similar. Justify.

• Yes, SAS.

• Yes, AA.

• Yes, SSS.

• No, not similar.

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

• x = 20

• x = 12

• x = 5

• x = 4

Are the triangles similar? If so, what is the scale factor from ΔDEF to ΔABC?

• Yes. 1.5

• Yes. ⅔

• Yes. 2

• No.