Stretching and Shrinking Quiz 2

Looking at the following image, which 2 rectangles are similar? Select the two below:

• Rectangle 1

• Rectangle 2

• Rectangle 3

Tags

CCSS.7.RP.A.2

CCSS.7.RP.A.3

What is the scale factor from rectangle RSPQ to rectangle ABCD?

What is the measure of side AD?

• 3

• 3.25

• 39

• 8

Tags

CCSS.8.G.A.4

What is the measure of angle R?

• 125 Degrees

• 55 Degrees

• 360 Degrees

• 180 Degrees

Tags

CCSS.7.G.B.5

Increase this shape by a scale factor of 2. What are the new side lengths?

• 4 and 7

• 4 and 10

• 1 and 2.5

• 8 and 20

Increase this shape by a scale factor of 3. What are the new side lengths?

• 6 and 15

• 5 and 8

• 3 and 3

• 18 and 45

How does a scale factor of 2 change the perimeter of a shape?

• The new, larger perimeter is 4x larger than the original.

• The new, larger perimeter is 2x larger than the original.

• The new, larger perimeter is 1/2x smaller than the original.

• The new, larger perimeter is the same as the original.

Tags

CCSS.7.G.A.1

CCSS.7.RP.A.2

How does a scale factor of 2 change the area of the new shape?

• The new, larger area is 4x larger than the original.

• The new, larger area is 2x larger than the original.

• The new, larger area is 1/4x smaller than the original.

• The area is the same as the original.

How does a scale factor of 3 change the side lengths of your new shape?

• The new sides are 9x larger than the original sides.

• The new sides are 1/3x smaller than the original sides.

• The new sides are the same as the original sides.

• The new sides are 3x larger than the original sides.

How does a scale factor of 3 change the area of the new shape?

• The new area is 9x larger than the original.

• The new area is 3x larger than the original.

• The new area is the same as the original.

• The new area is 1/9x smaller than the original.