Comparing Perimeter and Area of Similar Figures

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

• 11/6

• 6/11

• 121/36

• 36/121

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

• 9/14

• 14/9

• 196/81

• 81/196

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

The figures below are similar. The labeled sides are corresponding.

What is the perimeter of the smaller triangle?

• 23.8 mm

• 10.2 mm

• 6.67 mm

• 4.3 mm

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

• 9/14

• 14/9

• 196/81

• 81/196

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

• 11/6

• 6/11

• 121/36

• 36/121

The distance around a two-dimensional shape.

• Area

• Perimeter

• Length

• Width

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