Similar Polygons

Gwen scans a photo that is 4 in. wide by 6 in. tall into her computer. If she scales the height down to 3 in., how wide should the similar photo be?

• 3 in
• 2 in.
• 4 in
• 1 in

Tags

CCSS.HSG.SRT.A.2

CCSS.HSG.SRT.B.5

The two right triangles below are similar. What is x, the missing side length in triangle DEF? 

• 3.75
• 9.75
• 10
• 12

Tags

CCSS.HSG.SRT.A.2

CCSS.HSG.SRT.A.3

CCSS.HSG.SRT.B.5

CCSS.HSG.SRT.C.6

Review the picture.  Find the missing side measurement in the picture using a proportion.

• w = 18 m
• w = 6 m
• 6 m
• w = 0.16 m

Tags

CCSS.HSG.SRT.B.5

All angles in similar figures are congruent.  

• True
• False

Tags

CCSS.HSG.SRT.A.2

CCSS.HSG.SRT.A.3

CCSS.HSG.SRT.B.5

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

• Congruent
• Vertical
• Similar
• Complementary 

Tags

CCSS.HSG.SRT.A.2

CCSS.HSG.SRT.A.3

CCSS.HSG.SRT.B.5

• SIMILAR BY SSS
• SIMILAR BY SAS
• SIMILAR BY AA
• THEY ARE NOT SIMILAR

Tags

CCSS.HSG.SRT.A.2

CCSS.HSG.SRT.A.3

CCSS.HSG.SRT.B.5

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

• Similar.  SAS
• Similar.  AA
• Similar. SSS
• Not Similar

Tags

CCSS.HSG.SRT.A.2

CCSS.HSG.SRT.A.3

CCSS.HSG.SRT.B.5

The triangles are similar by...

• SAS
• AA
• ASA
• SSS

Tags

CCSS.HSG.SRT.A.2

CCSS.HSG.SRT.A.3

CCSS.HSG.SRT.B.5

Are the triangles similar?

• Yes
• No

Tags

CCSS.HSG.SRT.A.2

CCSS.HSG.SRT.A.3

CCSS.HSG.SRT.B.5

The triangles are similar by...

• SAS
• AA
• ASA
• SSS

Tags

CCSS.HSG.SRT.A.2

CCSS.HSG.SRT.A.3

CCSS.HSG.SRT.B.5