Ratios, Proportions, and Similar Polygons

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

• x = 20

• x = 12

• x = 5

• x = 4

Tags

CCSS.HSG.SRT.A.2

Two polygons are similar. The perimeter of the first polygon is 72 inches. The perimeter of the second polygon is 90 inches. What is the scale factor of the first polygon to the second polygon?

• 72 : 90

• 90 : 72

• 4 : 5

• 5 : 4

In similar Polygons, corresponding sides are ___ and corresponding angles are ___. (Fill in the blanks)

• congruent, proportional 

• proportional, congruent 

• congruent, congruent

• proportional, proportional

Tags

CCSS.8.G.A.2

CCSS.HSG.CO.B.6

Which is NOT equivalent to 3:5?

• 15:25

• 9:15

• 21:28

• 30:50

Tags

CCSS.6.RP.A.3A

Are the two figures similar

• yes

• no

Tags

CCSS.8.G.A.2

CCSS.HSG.CO.B.6

Solve for x. 

• 8

• 6

• 10

• 12

Tags

CCSS.HSG.SRT.A.2

• P = 85 feet

• P = 106.25 feet

• P = 68 feet

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

• x = 10

• x = 4

• x = 2

• x = 5

Tags

CCSS.HSG.SRT.A.2

Find the scale factor.

• 4:1

• 1:3

• 2:1

• 7:3

Solve for x

• x=6

• x =1/6

• x = 7

• x=9

Tags

CCSS.7.RP.A.2B