The answer will depend on what aspect of the circle is 54 inches: its radius or diameter.
Circumference = pi*d = 169.65 inches (to 2 dp)
A circle with a radius of 6 inches has a circumference of 37.7 inches.
The radius of a circle with a circumference 36 inches is: 5.73 inches.
A circle with a radius of 16 inches has a circumference of 100.53 inches.
A circle with a radius of 10 inches has a circumference of 62.8 inches.
Diameter = 54/pi = 17.18873385 or about 17 inches
Circumference = pi*d = 169.65 inches (to 2 dp)
It depends on what you mean by a certain size circle. If the certain size is the diameter, then the answer is 54 inches. If the certain size is the radius, then the answer is 108 inches. If the certain size is the circumference, then the answer is 54 / 3.14159 or about 17.19 inches
If the diameter of a circle is 12 inches the circumference is: 37.7 inches (diameter x pi = circumference).
A circle with a radius of 6 inches has a circumference of 37.7 inches.
a circle with circumference of 25.56 inches.
The circumference of a circle of 18 inches in diameter is about 56.55 inches.
The radius of a circle with a circumference 36 inches is: 5.73 inches.
The circumference of a circle with the diameter 11 inches is 34.56 inches.
A circle with a radius of 16 inches has a circumference of 100.53 inches.
The circumference of a circle when the diameter is 17 inches is: 53 inches.
The circumference of a circle with a diameter of 3 inches is 9.425 inches.