Area and Perimeter of Figures

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

• 4/7

• 7/4

• 49/16

• 16/49

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

• 4/7

• 7/4

• 49/16

• 16/49

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

• 64/25

• 25/64

• 5/8

• 8/5

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

• 64/25

• 25/64

• 5/8

• 8/5

The scale factor of two similar figures is 4 : 5. What is the ratio of their perimeters?

• 4 : 5

• 16 : 25

• 64 : 125

• 8 : 10

Find the missing perimeter.

• 15

• 20

• 25

• 30

What is the area ratio of the following rectangles?

• 10/7

• 100/49

• 100/36

• 4/36

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.

Two hexagons are similar with a scale factor of 4/5. If the area of the larger hexagon is 20, what is the area of the smaller hexagon?

• 10.24

• 12.8

• 16

• 25

What is the perimeter of the composite figure?

• 32 ft

• 22 ft

• 29 ft

• 31 ft