Scale Factors and Area

If a figure is enlarged by a scale factor of 3, what happens to its area?

• It triples

• It remains the same

• It becomes nine times larger

• It doubles

This is the original shape. What is the AREA of the scaled shape when a scale factor of 2 is applied?

• 15 in²

• 30 in²

• 60 in²

• 16 in²

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

Which of the following are scaled copies of the original image? Select ALL that apply

• A

• B

• C

• D

Area of original rectangle: 120 square units

Scale factor: 0.5

Area of Scaled Copy: ?

• 60 square units

• 240 square units

• 30 square units

• 120 square units

Which of the following figures is a scaled copy of Figure A?

• 
• 
• 

What is the scale factor?

• 4

• 25

• 5

• 6

If the scale factor is 5, how times larger will the area of the big square be compared to the smaller square?

• 5

• 20

• 25

The original area of a rectangle is 35 in². If the rectangle is enlarged by a scale factor of 3, what is the new area?

• 105 in²

• 11.6 in²

• 315 in²

• 210 in²

If the scale factor is less than one, the new figure will be

• an enlargement

• a reduction

• a scale factor

• bigger