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

Tags

CCSS.7.G.A.1

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

Tags

CCSS.7.G.A.1

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

Tags

CCSS.7.G.A.1

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

Tags

CCSS.7.G.A.1

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

• 
• 
• 

Tags

CCSS.8.G.A.3

What is the scale factor?

• 4

• 25

• 5

• 6

Tags

CCSS.7.G.A.1

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

Tags

CCSS.7.G.A.1

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

Tags

CCSS.7.G.A.1

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

• an enlargement

• a reduction

• a scale factor

• bigger

Tags

CCSS.8.G.A.3