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Q: What is the relationship called between the diameter of a circle and its circumference?

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pi

The distance across a circle through the center is called the diameter. The distance around a circle is called the circumference. Pi is the ratio of the circumference of a circle to the diameter. So,2 radius x Pi = circumferencePi is approximately 3.14159265358979323846...

An impossibility because if the diameter is 3.14 then the circumference must be 3.14*pi

That is called pi, the ratio between the diameter and the circumference of a circle. Of course, 3.14159265 is more accurate.

diameter X pi = circumference What you call edge is usually called circumference. pi = 3.1416

The equivalent of a "perimeter" in a circle is actually called its circumference. To get the diameter, just divide the circumference by pi.

It is called circumference. This is usually calculated from the diameter (circumference = pi x diameter), or from the radius (circumference = 2 x pi x radius).

pi = circumference of a circle divided by its diameter

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.

It is pi

With "width", I assume you mean what is commonly called the diameter - the distance through the center. The circumference is diamter x pi, therefore, the diameter is the circumference divided by pi. In other words, just divide the circumference by 3.14, approximately.With "width", I assume you mean what is commonly called the diameter - the distance through the center. The circumference is diamter x pi, therefore, the diameter is the circumference divided by pi. In other words, just divide the circumference by 3.14, approximately.With "width", I assume you mean what is commonly called the diameter - the distance through the center. The circumference is diamter x pi, therefore, the diameter is the circumference divided by pi. In other words, just divide the circumference by 3.14, approximately.With "width", I assume you mean what is commonly called the diameter - the distance through the center. The circumference is diamter x pi, therefore, the diameter is the circumference divided by pi. In other words, just divide the circumference by 3.14, approximately.

If you divide the circumference of the sun by its diameter you will have found the number called "Pi". The actual number is an infinite string of digits that starts 3.14159. This is true for any circle of any size: The circumference divided by the diameter equals Pi. Conversely if you know the diameter you can multiply that by Pi (3.14159) and that will give you the circumference. The diameter multiplied by Pi equals the circumference.

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