Ch. 7 Quiz (CFA)

The polygons are similar, but not necessarily drawn to scale. Find the value of x.

• x = 8

• $x=\frac{11}{2}$

• x = 9

• x = 10

Tags

CCSS.HSG.SRT.A.2

Are the two triangles similar? How do you know?

• no

• yes, by SAS~

• yes, by AA~

• yes, by SSS~

Tags

CCSS.HSG.SRT.B.5

What is the value of x to the nearest tenth?

• 25.2

• 2.0

• 2.4

• 9.4

Tags

CCSS.HSG.CO.C.9

What is the value of x?

• 8

• 12

• 6

• 2

Tags

CCSS.HSG.CO.C.10

What is JK?

• $\frac{3}{15}$

• $\frac{3}{5}$

• $\frac{5}{3}$

• 15

Tags

CCSS.HSG.SRT.A.2

Are the polygons similar? If they are, write a similarity statement and give the similarity ratio small:big.

•  $\Delta RST\sim\Delta WUV;\ \ 5:6$ 

•  $\Delta RST\sim\Delta UVW;\ \ 5:6$ 

•  $\Delta RST\sim\Delta VWU;\ \ 6:5$ 

• The triangles are not similar.

If KL = 9 and JK = 7, what is ML?

• 10

• 9

• 12

• 8

Tags

CCSS.HSG.SRT.A.2

• 10

• 20

• 13

• 25.5

Tags

CCSS.HSG.SRT.B.4

• 4.5

• 8

• 20

• 64

• No; the sides are not congruent.

• Yes; $\Delta EDF\sim\Delta BCA\$ by SSS~

  
  

• Yes; $\Delta EDF\sim\Delta BCA\$ by AA~

• Yes; $\Delta EDF\sim\Delta BCA\$ by SAS~

Tags

CCSS.HSG.SRT.B.5