The circumference = 18.8 cm
radius = 64/(2*pi) = 10.186 cm rounded to 3 dp
circumference = 2*pi*15.8 = 99.27432785 or 99.274 cm to 3 d.p.
Circumference = pi*15.5 = 48.695 cm rounded to 3 dp
Circumference of circle: 2*pi*4.9 = 30.788 rounded to 3 decimal places
Circumference: 2*pi*3 = 6*pi inches Area: pi*3 squared = 9*pi square inches
radius = 17/(2*pi) = 2.705634033 or 2.706 cm to 3 d.p.
circumference = 2pi4.2 = 26.389 cm to 3 decimal places
Circumference = 2*pi*radius (not raduis) = 19 cm, approx.
About 18.85cm
Circumference = 2*pi*7.1 = 44.611 cm and rounded to 3 dp
radius = 28.6/2*pi = 4.552 cm rounded to 3 dp
circumference = 2pi50 = 314.159 cm to 3 decimal places
radius = 64/(2*pi) = 10.186 cm rounded to 3 dp
circumference = 2*pi*15.8 = 99.27432785 or 99.274 cm to 3 d.p.
circumference = 2*pi*15.7 = 98.646 cm to 3 decimal places
circumference = 2*pi*8.6 = 54.035 cm to 3 decimal places
Circumference is equal to 2 times pi times the radius. The radius is half the diameter, so pi times the diameter is also the circumference. In this case, the diameter is 3 meters so 3 times pi equals 9.42 So the circumference is about 9.42 meters.