65 x pi = 204.2cm to one decimal place.
If that's the diameter, you can multiply that by pi (which is approximately 3.14), to get the circumference.
The circumference of a ball is C = diameter times pi. pi = 3.14159 ... So you get the circumference C = 27.4889 inches.
Circumference of pool ball: 2*pi = 6.283 inches rounded to 3 decimal places
Circumference = π x DiameterC= 3.14159 x 14C= 43.98 cm
The quickest way would be to actually measure it!Another way is to find how high/wide the ball is. This has to be done very accurately. Yoy could use parallel wooden boards (be careful not to squash the ball!The multiply the width/height of the ball by 3.14159265 (Pi).The formula is Pi x d (diameter) = circumference. A ball that is 30 cms in diameter will have a circumference of 94.248 cms.
204.2
The circumference of a circle of 65cm radius is about 408.41cm(Circumference = 2*pi*65 cm)
pi
80.3932881
If that's the diameter, you can multiply that by pi (which is approximately 3.14), to get the circumference.
The circumference of a ball is C = diameter times pi. pi = 3.14159 ... So you get the circumference C = 27.4889 inches.
Circumference = pi*d = 69 inches
65/2.54=25.59055118110236"
Circumference of pool ball: 2*pi = 6.283 inches rounded to 3 decimal places
Circumference = π x DiameterC= 3.14159 x 14C= 43.98 cm
The diameter is 1.68 inches or greater. The circumference can be found from ordinary principles of geometry. The formula for a the circumference is: C = πd So the circumference of a golf ball would be 5.2779 (to 4 decimal places)
circumference = 5*pi = 15.70796327 or 15.708 cm rounded to 3 d.p.