Dilations Area and Perimeter

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

Two objects that are the same shape but NOT the same size are _______.

• Congruent

• Vertical

• Similar

• Complementary

A figure is dilated by a scale factor of 4. Which of the following statements about the figure must be true?

• The perimeter and area are both multiplied by 4.

• The perimeter is multiplied by 4 and the area is multiplied by 16.

• The perimeter and area are both divided by 4.

• The perimeter is multiplied by 16 and the area is multiplied by 4.

The perimeter of the larger square is 2 times larger than the smaller square.

• True

• False

Figure ABCD has an area of 4 units². It is then dilated using a scale factor of 4. What is the perimeter of the new figure?

• 32

• 64

• 8

The area of the larger square is __________ times larger than the area of the smaller square.

• 1/2

• 1

• 2

• 4

Both the side lengths and perimeter are 3 times larger in the bigger rectangle.

• True

• False

What is one way to determine how much the area would increase using a scale factor of 3?

• take the scale factor and square it to get 3x3=9

• add all of the sides together then multiply by 3

• multiply the area of the smaller rectangle by 3

Find the ratio (blue to red) of the perimeter.

• 4/7

• 7/4

• 49/16

• 16/49

Find the perimeter of the large triangle.

• 24

• 36

• 12

• 54