Perimeter and Area of Similar Polygons

• 9:1

• 2:1

• 3:1

• 36:4

• 4:49

• 2:7

• 1:7

• 1:25

Find the area of polygon B given similar polygons and the scale factor is shown. Round your answer to the nearest tenth.

• 23.0 m²

• 18 m²

• 18.4 m²

• 12.5 m²

The figures are similar. What is the ratio of their perimeters?

• 18/24

• 3/4

• 1/2

• 36/24

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

• 9/14

• 14/9

• 196/81

• 81/196

The figures are similar. Find the area of the smaller rectangle.

• 20 in²

• 4 in²

• 10 in²

• 15 in²

The figures are similar. What is the ratio of their areas?

• 324/576

• 3/4

• 9/16

• 1/4

The figures are similar. Find the area of the larger rectangle.

• 108 ft²

• 54 ft²

• 6.75 ft²

• 100 ft²

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

The playing surfaces of two foosball tables are similar. The ratio of the corresponding side lengths  is 10:7. What is the ratio of the areas? 

• 200: 494

• 100 : 28

• 832 : 48

• 100 : 49