7.1 7.2 Ratios, Proportions, and Similar Polygons

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.

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

Solve for x 

• x = 1/10
• x = 10
• x = 4
• x = 5

Tags

CCSS.7.RP.A.2C

Simplify the ratio of
35 : 14

• 5 : 2
• 2 : 5
• 3 : 1
• 35: 14

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.3

Sides in similar figures must be proportional.  

• True
• False 

All angles in similar figures are congruent.  

• True
• False

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

• x = 1
• x = 3
• x = 9
• x = 5

Tags

CCSS.HSG.SRT.B.5

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.7.G.A.1

• x = 1/24
• x = 29
• x = 28
• x = 3/2

Tags

CCSS.HSA.APR.D.7

CCSS.HSA.REI.A.2

CCSS.HSA.REI.B.3