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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.
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∙ 15y ago
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Formula for finding the circumference of cone?
There is no circumference of a cone, but, we only do the circumference of the circle. the formula for the circle is pi times D. D= Diameter
What is the formula for finding circumference and area of a circle?
Circumference of a circle is (pi * diameter). Area of a circle is (pi * r2).
What is the formula of a circumference?
circumference=r2pi
What is the formula for finding the diameter of a circle when the circumference is given?
C = pi d By algebraic rearrangement d = C / pi
What is the circumference of a 55 centimeter ball?
The circumference of a 55 centimeter ball is: 172.8 cm(c = d x Pi)
Formula for finding the circumference of cone?
There is no circumference of a cone, but, we only do the circumference of the circle. the formula for the circle is pi times D. D= Diameter
What is the formula for finding circumferencE when only diameter is given?
Circumference of a circle = (pi) x (diameter)
What is the formula of finding the circumference of the pipe?
diameter times 3.14159
What is the formula for finding the radius of a circle when you have the circumference?
Divide the circumference by 2*pi because 2*pi*radius = circumference
What formula is pi d?
It is the formula for finding the circumference of a circle which is the same as 2*pi*radius
What is the formula for finding perimeter of a circle?
The formula for the circumference of a circle is pi * diameter or (2 radius.)
What is the formula for finding circumference of a semi-circle?
2r+pi r
What is the formula for finding the circumference of a circle with diameter?
PI times the DIAMETER
What is the formula of finding the area with a given circumference?
3.14 to the 2 power
What is the formula for finding the circumference of a circle when you only know the radius?
Circumference = 2 x pi x radius
What is the formula of finding the circumference of a sphere?
4*pi*r2. because surface area is equal to circumference of circle.
What is the formula for finding circumference and area of a circle?
Circumference of a circle is (pi * diameter). Area of a circle is (pi * r2).
