The circumference of any circle is (pi) x (the circle's diameter).
diameter = circumference ÷ π = 10 ft ÷ π ≈ 3.18 ft
24 pi or about 75.4
That depends on what you mean by a "20 ft semicircle".A semi-circle is a half circle.A 20 ft circle could be:A circle of diameter 20 ftThe perimeter of the semicircle is half the circumference plus the diameter → perimeter = 1/2π 20 ft + 20 ft= 10π + 20 ft≈ 51.42 ftA circle of radius 20 ftThe perimeter of the semicircle is half the circumference plus double the radius → perimeter = 1/2 2π 20 ft + 2 x 20 ft= 20π + 40 ft≈ 102.08 ftA circle of circumference 20 ftThe perimeter of the semicircle is half the circumference plus the diameter → perimeter = 1/2 20 ft + 20 ft ÷ π= 10 ft + 20/π ft≈ 16.37 ftHowever, if a 20 ft circle is a circle with a circumference (= perimeter) of 20 ft then a 20 ft semi-circle could be a semicircle with a perimeter of 20 ft→ perimeter = 20 ft
The circumference of an 8 ft circle is: 25.1 feet.
The circumference of a 35 ft diameter circle is: 110 feet.
The circumference of a circle with a diameter of 10 ft is: 31.42 feet (diameter x Pi = circumference).
The circumference of a circle with the diameter of 14 ft is: 44 feet.
Circumference of a circle is pi multiplied by the diameter. If the diameter of the circle is 11 ft, the circumference is: 3.14 x 11 ft = 34.54 ft
The circumference of any circle is (pi) x (the circle's diameter).
The circumference of a circle whose diameter is 1.5 ft is: about 4.712 feet.
The circumference of a circle with a diameter of 32 feet is: 100.5 feet (diameter x Pi = circumference).
circumference = π x diameter => diameter = circumference ÷ π ~= 20ft ÷ 3.14 ~= 6.37 ft
The circumference of a 23 ft in diameter circle is: 72.3 feet. (C = d x Pi)
If a circle has a circumference of 6 ft, the diameter is: about 1.91 feet. You can easily do this calculation for other circles by dividing the circumference by Pi (about 3.1416). The result is the diameter.
A circle with a diameter of three feet has a circumference of 9.4 feet.
diameter = circumference ÷ π = 10 ft ÷ π ≈ 3.18 ft