Dilation Measurement

If a rectangle is drawn and another rectangle is drawn so that the sides are twice as big as the first rectangle, what happens to the area?

• doubles

• triples

• quadruples

• not enough information

What scale factor was used to produce the image?

• 2

• -2

• ¹/₂

• 1

Solve the proportion:

• c = 4

• c = 8

• c = 14

• c = 10

What is the scale factor from ΔABC to ΔDEF?

• 1/2

• 7/3

• 2

• 10/3

What is the scale factor from ABCD to MNOP?

• 2/3

• 3/2

• 2

• 3

What is the scale factor from the large triangle to the small triangle?

• 1/2

• 2/3

• 3/4

• 2

State the coordinate of the image of the given point B (4,9) under a dilation with center at the origin with the given scale factor of 2.

• B' (2 , 4.5)

• B' (-8 ,-18)

• B' (8 ,18)

• B' (9 ,4)

The pair of figures is similar. Find the missing side.

• x = 9

• x = 28

• x = 7

• x = 63

Solve for X.

• 2 ft

• 3 ft

• 4 ft

• 6 ft

The pair of figures is similar. Find the missing side.

• x = 20

• x = 12

• x = 5

• x = 4