12 feet
40 feet
A rhombus can't have two different side lengths. They all must be the same. If the sides are 30-in, then the perimeter is 120-in. If they're 40-in, then the perimeter is 160-in.
If the table is a circle and the perimeter is 40 feet, then the diameter (rounded to 2 decimal places) would be 12.74 circumference = diameter x pi so, diameter = circumference / pi
40
12 feet
8 by 12
Perimeter is 40 feet.
40 feet
10,800 cubic feet
The distance around or Perimeter of a Rectangle is equal to the sum of the length of the 4 sides.18' + 40' + 18' + 40' = 116'
40 feet
Width: 1200/40 = 30 feet
The perimeter is exactly one mile (5,280 feet).
A rhombus can't have two different side lengths. They all must be the same. If the sides are 30-in, then the perimeter is 120-in. If they're 40-in, then the perimeter is 160-in.
The perimeter of a rectangle is twice the length plus twice the width.20' x 2 = 40'100' - 40' = 60'60' / 2 = 30'
Add the length of each wall to get the total perimeter of the room. In this case 10+10+10+10=40. Then multiply the40 by the height of the room. In this case 8. The answer 40*8=320 is the square feet of the walls in the room.