Scaled Drawing

What is a scale factor?

• A scale factor is a multiplier used to resize an object.

• A scale factor is used to calculate area only.

• A scale factor is a fixed value that cannot change.

• A scale factor is a type of measurement unit.

Which images are scaled copies of the original? (Select ALL correct answers)

• A

• B

• C

• D

What is the scale factor from the original to copy 1?

• 1

• 1/4

• 2

• 1/2

What is the scale factor from the original to copy 2?

• 1

• 1/4

• 2

• 1/2

What is the scale factor when going from the smaller to the largest triangle?

• 2

• 3

• 4

The two triangles are similar. What is X?

• 3

• 2

• 4

If these two images are similar, what is X?

• 10

• 12

• 15

The two triangles are similar. What is Y in the smaller triangle?

• 6

• 6.5

• 7

• 5.5

Are these two images similar?

• Yes

• No

A room has an actual width of 20 feet and length of 25 feet.  How should the scale drawing look like if the scale used is 1 unit: 5 feet?

• A

• B

• C

• D