18" is half of a yard, in measurement. There is a formula that will convert the measurement into degrees, but I don't know the formula by memory.
18 inches = 1.5 feet, so 18 inches : 10 feet = 1.5 feet : 10 feet = 3 : 20
18 inches = 45.72 centimetres.18 inches = 45.72 centimetres.18 inches = 45.72 centimetres.18 inches = 45.72 centimetres.
18 inches / 1 yard = 18 inches/36 inches = 1/218 inches / 1 yard = 18 inches/36 inches = 1/218 inches / 1 yard = 18 inches/36 inches = 1/218 inches / 1 yard = 18 inches/36 inches = 1/2
If the perimeter is already measured in inches, there is nothing to convert. There are 18 inches in a perimeter of 18 inches.
18*18*36 = 11,664 cubic inches
18 x 18 x 36 = 11,664 cubic inches
If the diameter of a circle is 18 inches then its radius is 18/2 = 9 inches
18 inches is 1 foot 6 inches.
18 inches.
18.8 centimeters = 7.4015748 inches.
Errrrh, the dimensions would be 18 inches by 12 inches!
17.9 inches is less than 18 inches.