Scale and Scale Factor

Solve the proportion below:

• 42

• 6

• 2

• 28

Tags

CCSS.7.RP.A.2B

Triangle ABC and XYZ are similar, ABC is the copy and XYZ is the original shape.  What is the scale factor or multiplier used to make the the smaller one larger?

• 2

• ½

• ⅖

• 5/2

Tags

CCSS.7.G.A.1

Maura is building a 2 ft. tall model of the Gateway Arch in St. Louis, Missouri.  The scale is 3 in : 78.75 ft.  Estimate the height of the actual arch.

• 630

• 600

• 400

• 200

Tags

CCSS.7.G.A.1

A blueprint was using a scale of 3cm = 4.5m. Find the actual length if it is 5cm on the drawing. (Hint: simplify the scale first)

• 7.5

• 13.5

• 1.5

• 1.7

Tags

CCSS.7.G.A.1

Sides in similar figures must be proportional.  

• True

• False 

Tags

CCSS.8.G.A.2

CCSS.HSG.CO.B.6

• 0.25
• 0.5
• 2
• 1/2

Tags

CCSS.7.G.A.1

What is the scale factor?

• 4

• 6

• 2.5

• 1.5

Tags

CCSS.7.G.A.1

Which of the following are scaled copies of the original portrait? Select ALL the apply.

• A

• B

• C

• D

• E

Which side length on the scaled copy corresponds to the side length HJ on the original image?

• AB

• BC

• AC

Tags

CCSS.8.G.A.2

CCSS.HSG.CO.B.6

If the scale factor is 4, what is the measurement of slide length x?

• 21

• 1.25

• 20

Tags

CCSS.7.G.A.1