The ratio of circumference to diameter is a number called pi, equal to about 3.14159265. If you round this to 3, you are about 4.5% off. This is good enough for mental estimates; for calculations on paper and pencil, or calculator, I would at least use two digits after the decimal point, i.e., 3.14.
circumference = pi*diameter or pi = circumference/diameter
The circumference is pi times the diameter.
Yes because: circumference/diameter = pi and circumference = pi*diameter
Circumference = diameter x pi
Circumference of a circle is approximately 3.1416 times the diameter of the circle.
Circumference = 2*pi*Radius Diameter = 2*Radius Circumference = pi*Diameter
pi
Because the circumference of any circle divided by its diameter is always equal to pi.
What is the relationship between the circumference and the diameter? Answer The circumference divided by pi gives the diameter. d = C / pi An alternate way to express the above answer. For all circles, pi is the ratio of the circumference to the diameter pi = C / d
The circumference and diameter
pi X diameter = circumference of the circle.
The circumference of a circle when divided by its diameter is the value of pi which is an irrational number.