Scale Factor

_________ ________ is the number you multiply by the sides to create a scaled copy.

• Scale Factor

• Corresponding Angle

• Pi

• Mid Point

What is the scale factor from the original triangle to its copy?

• 1/2

• 5

• 1/4

• 1/5

Is Figure B a scaled copy of Figure A?

• Yes

• No

A scaled copy is a copy of a figure where every length in the original figure is _______________ by the same number.

• multiplied

• added

• divivided

• subtracted

Scale factor is _________

• the number you multiply the original shape by in order to get the scale copy

• the number you divide the original shape by in order to get the scale copy

• the number you add the original shape by in order to get the scale copy

• the number you subtract the original shape by in order to get the scale copy

What is the scale factor?

• 1

• 2

• 1/2

• -2

Is Figure B a scaled copy of Figure A?

• Yes

• No

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.