Circ = 2 pi r, Diam = 2r so circumference = pi times diameter
Chat with our AI personalities
circumference = 15*pi cm
circumference = pi*40cm
diameter = 128/pi
That depends on its diamter which has not been given but the circumference of a circle is diameter times pi
Pi is the ratio of a circle's circumference to its diamter. It equals approximately 3.14159 Pi = circumference/diameter