Scale Factor and Scale Copy

Scaled copy is _________.

• shapes that are the same size but can be different shapes

• shapes that are the same shape but can be different sizes

• a shape that look distorted from the original

• a slanted version of the original shape

What is the scale factor?

• 1

• 2

• 1/2

• -2

Tyler says that Figure B is a scaled copy of Figure A because all of the peaks are half as tall. Do you agree with Tyler?

• yes

• no

If you were asked to draw a scaled copy with a scale factor of 1, the copy will be...

• Larger

• Smaller

• The Same Size

Answer explanation

Scale factor of 1 means you multiply all side lengths by 1. Anything multiplied by 1 is itself, so the lengths are not changing. This means the shape is going to be the same size.

If you were asked to draw a scaled copy with a scale factor of 4, the copy will be...

• Larger

• Smaller

• The Same Size

Answer explanation

Scale factor of 4 means you multiply all side lengths by 4. If the lengths are getting longer, the shape is getting larger.

• Larger

• Smaller

• The Same Size

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

• A

• B

• C

• D

• E

What is the scale factor?

• 1

• 2

• 3

• 4

What is the scale factor?

• 4

• 6

• 2.5

• 1.5

What is the scale factor from ΔDEF to ΔABC?

• 1/2

• 7/3

• 2

• 10/3