Dilation Area and Perimeter

• A

• B

• C

• D

A rectangle is dilated by a scale factor of 3. What will be the resulting effect on the area?

• It will be dilated by scale factor of 3

• It will be dilated by a scale factor of 9

• There will be no effect on the area

• It will be dilated by 1/3

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

• an enlargement

• a reduction

• a scale factor

• bigger

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

• reduction

• enlargement

• scale

• not proportional

A triangle has vertices A(0,0), B(8,0), C(3,-2). Find the coordinates of the triangle after a dilation with a scale factor of  4. The dilation is (X,Y) --- (4x,4y)

• A(3,3), B(4,4), C(-3,-4)

• A(-4,8), B(6.5,8), C(7,7)

• A(0,0), B(32,0), C(12,-8)

• 66 inches

• 90 inches

• 54 inches

• 162 inches

• 4 inches

• 2 inches

• 16 inches

• 8 inches

• 6 inches

• 4 inches

• 12 inches

• 36 inches

• 144 inches

• 48 inches

• 72 inches

• 288 inches

• 30 square inches

• 10 square inches

• 60 square inches

• 20 square inches