C = 2*pi*r
8 = 2*pi*r
4 = pi*r
r = 4/pi
Chat with our AI personalities
radius of a circle = 4 inchesCircumference of a circle = 2π radiusradius = circumference/ 2π= 8π/2π= 8/2= 4
Circumference of a circle that is 8 inches of what? 8 inches in diameter? 8 inches in radius? Please clarify your question next time.If it's 8 inches in diameter, the circumference would be as follows:Circumference of a circle = pi (sorry but I don't know how to type the symbol) x diameter = 3.14 x diameter (if you round pi)Therefore if diameter=8, circumference = 3.14 x 8 = 25.12 inches.If the 8 inches is the radius, you multiply that by 2 to get the diameter and use the same formula to find the circumference. (Diameter = 8 x 2 = 16 inches, Circumference = 3.14 x 16 = 50.24 inches.)
Clarity please!!!! 'Circumference of what??? Also what does the 8 cm represent . diameter, radius, diagonal etc., !!!!
Radius = 4 so diameter is 8. 2xR = D Circumference formula: C = pi x diameter So 25.133 = 3.14 x 8
Circumference equals 2 x the radius x pi. 4(2) = 8 So, the circumference is 8 pi. However, if you want to calculate the actual value, multiply those two together and you get roughly 25.1.