Area and Perimeter Ratios

Find the ratios (red to blue) of the perimeter and the area.

• Perimeter: 20/54
  Area: 58/485
  Area:

• Perimeter: 3/4
  Area: 9/16

• Perimeter: 58/299
  Area: 57/383

• Perimeter: 5/10
  Area: 19/46

The ratio of the figures is 8:5. Find the missing measure. 

• x = 25.6

• x = 25

• x = 43

• x = 23

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

• 9/14

• 14/9

• 196/81

• 81/196

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

• 81

• 432

• 576

• 243

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?

• 182

• 432

• 576

• 243

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 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

The area of rectangle A is 136 cm² and the perimeter is 50 cm. The area of rectangle B is 585 cm² and the perimeter is 108 cm. Are these similar figures? 

• Yes

• No

• Not enough information

The area of rectangle A is 540 cm² and the perimeter is 114 cm. The area of rectangle B is 60 cm² and the perimeter is 38 cm. Are these similar figures? 

• Yes

• No

• Not enough information