Similar Shapes and Scale Factor

Solve the proportion:

• 15

• 5

• 10

• 12

Tags

CCSS.7.RP.A.2B

If two figures are similar, the corresponding sides are ______________.

• equal

• congruent

• proportional

• none of these

Tags

CCSS.8.G.A.2

CCSS.HSG.CO.B.6

Which triangle is similar to the above triangle?

• A

• B

• C

• D

Tags

CCSS.8.G.A.2

CCSS.HSG.CO.B.6

What is the scale factor from ΔDEF to ΔABC?

• 1/2

• 7/3

• 2

• 10/3

Tags

CCSS.7.G.A.1

Solve the equation below:

• k = 152

• k = 176

• k = 5

• k = 27

Tags

CCSS.7.RP.A.2A

• 74
• 100
• 104
• 108

Tags

CCSS.HSG.SRT.B.5

Joe's picture of a dog was 5 inches by 6 inches.  He redrew it to be 20 inches by 24 inches.  His new drawing is  ___________ times larger.

• 6

• 5

• 4

• ¼

Tags

CCSS.7.G.A.1

Use the diagram to the right to determine the distance across  Catfish Lake. Assume the triangles are similar. 

• 6.75 km

• 4.1 km

• 2 km

• 3 km

Tags

CCSS.HSG.SRT.B.5

What is the scale factor from ABCD to MNOP?

• 2/3

• 3/2

• 2

• 3

Tags

CCSS.8.G.A.4

CCSS.HSG.SRT.A.2

The two rectangles are scale drawings. What is the measurement of x?

• 21

• 1.25

• 20

• 4

Tags

CCSS.7.G.A.1