Perimeters and Areas of Similar Figures

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

• 108 ft²

• 54 ft²

• 6.75 ft²

• 100 ft²

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

• 11/6

• 6/11

• 121/36

• 36/121

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

If the ratio of perimeters of 2 triangles is 3:4, and the area of the smaller triangle is 324, what is the area of the larger triangle?

• 81

• 432

• 576

• 243

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

• 14/9

• 9/14

• 196/81

• 81/196

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

• 4/7

• 7/4

• 49/16

• 16/49

What is the perimeter ratio of the following rectangles?

• 7/6

• 10/6

• 5/3

• 10/7

The perimeter of one rectangle is 12 units. The perimeter of another rectangle is 20 units. If the area of the SECOND (larger) rectangle is 16 square units, what is the area of the first rectangle?

• 5.76 square units

• 9.6 square units

• 26.7 square units

• 44.4 square units

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

• 11/6

• 6/11

• 121/36

• 36/121

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

• 4/7

• 7/4

• 49/16

• 16/49