Q: What is the circumference of an 8 ft circle?

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The circumference of any circle is (pi) x (the circle's diameter).

The circumference of a 35 ft diameter circle is about 110 feet. (d x Pi = C)

diameter = circumference ÷ π = 10 ft ÷ π ≈ 3.18 ft

If the circumference is 8 feet, the diameter of the circle is: 2.55 feet.

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

Related questions

25.12

C = ~25.133 ft

It is 8*pi = 25.13 ft, approx.

2 x pi x 8 ft = 50.265 ft

The circumference of a 30 ft circle is: 94.2 feet.

The circumference of a circle is the same as the perimeter of a circle, so the perimeter and circumference would both be 3 ft.

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 a circle with the diameter of 14 ft is: 44 feet.

The circumference of a circle with a diameter of 10 ft is: 31.42 feet (diameter x Pi = circumference).

It is 4/pi = 1.27 ft, approx.

The circumference of a 12 ft circle is: 37.7 feet.

The circumference of a circle whose diameter is 1.5 ft is: about 4.712 feet.