Scale Factor as Percent

When you use a percent that is less than 100% to change the original, what is true about the new image?

• The new image is larger than the original.

• The new image is smaller than the original.

• The new image is the same size as the original.

• No one knows for sure what will happen.

Using a vertical scale factor of 175%, calculate the new height of the figure.

• 14 units

• 12 units

• 12.25 units

• 15.75 units

The pencil pictured was reduced to 60% of its original size. What are the new dimensions of the pencil?

• 0.9 units x 4.2 units

• 2.4 units x 11.2 units

• 1 unit x 5 units

• 0.9 units x 7 units

What is the scale factor from ΔDEF to ΔABC?

• 50%

• 150%

• 20%

• 200%

_________ ________ is the number you multiply by the sides to create a similar figure.

• Scale Factor

• Corresponding Angle

• Pi

• Mid Point

What does it means if the scale factor is less than 100% (less than 1)?

• The resulting figure will reduce.

• The resulting figure will enlarge.

• The resulting figure will stay the same.

• There is not enough information to answer the question.

Using a horizontal scale factor of 80%, calculate the new length of the red side of the figure. Fill in the blank to answer the question: The new side length is _____ units.

If the scale factor is greater than 100%, the new figure will be

• a reduction

• an enlargement

• a scale

• not proportional

What is the scale factor?

• 400%

• 25%

• 104%

• 4%

What is the scale factor, as a percent, from figure S to T?

• 4%

• 400%

• 200%

• 104%

• 440%