The circumference of a circle that has a radius of 3.2cm is: 20.1cm
The circumference of a circle with a radius of four is: 25.13
A circle with a radius of 4m has a circumference of 25.133m.
The circumference of a circle with radius of 10cm is: 62.83 cm
The great circle has circumference 40pi and we know circumference is 2pixr so 20 is the radius of the sphere. Now use this and the formula that surface area is 4pir^2 so the surface are is 4pi(20)^2. or pi(1600)
4pi~ 12.566
Circumference is pi * r * 2. Area is pi * r2. In your circle, both r * 2 and r2 equal 4. Your radius is 2 inches.
The area of a circle is (pi x radius squared) A = πr2 The circumference is (pi x diameter) C = π (2r) So if you have the circumference, the area is the circumference squared, divided by 4pi (about 12.566). A = C2/4π Example: A circle with a diameter of 6 inches has a radius of 3 inches Area A = pi (32) or about 28.27 square inches Circumference C = pi (6) or about 18.85 inches Using C2/4pi, the area is 18.85 x 18.85 / 12.566 = about 28.27 square inches
The answer is C = 2*pi.
A circle with radius=2. (pi*2^2=4pi and 2*2pi=4pi)
The circumference of circle with radius 12cm is 75.4cm
The circumference of a circle if the radius is 29 is about 182.21
The circumference of a circle with a radius of 11 is: 69.12
The circumference of a circle that has a radius of 3.2cm is: 20.1cm
The radius of a circle with a circumference of 110 is: 17.507
The circumference of a circle with a radius of four is: 25.13
The circumference of a circle with a radius of 6.7 is: 42.097