Circumference = 2*pi*radius (not raduis) = 19 cm, approx.
Divide the circumference by 2pi
Radius = circumference/pi
Circumference of a circle: 2 x pi x radius.
to find the raduis of any circle, divde the diameter by 2. in this case, the answer would be 3.50
The circumference of a circle, if the radius is 11cm, is about 69.12cm
Circumference = 2*pi*radius (not raduis) = 19 cm, approx.
A circle with a radius of 8 units has a circumference of 50.3 units.
C = about 12.57
Divide the circumference by 2pi
Radius = circumference/pi
Circumference of a circle = 2*pi*radius
Circumference of a circle: 2 x pi x radius.
circumference = 2*pi*9 inches
The circumference is 2*pi*radius (not raduis) and this formula is applicable whether the radius is an integer, a fraction, or even an irrational number.
Circumference=2Pir so 64 is Pixr and the radius is 64/Pi
Circumference = 2*pi*r where pi = 3.14159 (approx) and r is the radius.