Midterm test

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.

Are the triangles similar?

• Yes

• No

ΔPRQ ∼ ΔDEF

What is m∠D

?

• 35

• 56

• 89

• 40

Identify the value for z.

• 90°

• 360°

• 122°

• 180°

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

figure.

• a

• b

• c

• d

• 2

• 3

• 12

• 13

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

• Similar.  SAS

• Similar.  AA

• Similar. SSS

• Not Similar

• SIMILAR BY SSS

• SIMILAR BY SAS

• SIMILAR BY AA

• THEY ARE NOT SIMILAR

The polygons are similar. Find x.

• x = 2

• x = 6

• x = 4 

• x = 8

Find missing side

• 5

• 7

• 9

• 11