Scale Factors Area

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

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

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

• A

• B

• C

• D

In the figure above, a dilation from A to A' has occurred. What is the scale factor?

Mathematical Equivalence

ON

The two rectangles are scale drawings. What is the measurement of x?

• 21

• 1.25

• 20

• 4

If the scale factor is 4, what is the measurement of x?

• 20 m

• 24 m

• 16 m

• 4 m

solve number 1

Mathematical Equivalence

ON

If the scale factor is 4, what is the measurement of x?

• 20 m

• 24 m

• 16 m

• 4 m

What is the scale factor from ΔDEF to ΔABC?

• 1/2

• 7/3

• 2

• 10/3