The circumference is 2rpi, thus, we have the equation:
2pir = 424
pi*r = 212
p = 212/pi
Which is approximately 67.481695871 (rounded up).
Chat with our AI personalities
radius = circumference/2*pi
The circumference is approximately 37.7 yards.
find the circumferance as if it was a whole circle but when you get the answer divide it by 2
divide the circumference by 3.14 to get the diameter - then divide that by 1/2 to get the radius Radius = Circumference / 2 x pi from C = Diameter x pi
Area 4 pi, circumference 4 pi! This is because 2 is the only number equal to half of its square.