What is 9700 times pi?

9700 is an integer and pi (π) is the ratio of a circle's circumference to its diameter and is best known as 3.14. However, pi is an irrational number with an infinite number of decimals: 3. 1 4 1 5 9 2 6 5 3 5 8 9 7 9 and so on.

For most practical purposes, 9700 times pi is simply 9700 times 3.14 as illustrated below:

9700 x 3.14 =
30458

You can make the answer more accurate by using more decimals of pi. For example, here is 9700 times pi with 12 decimal numbers:

9700 x 3.141592653589 =
30473.4487398133

If 9700 is the diameter of a circle, then 9700 times pi is the circumference of that same circle. See definitions and explanations below to find out why!

Definitions

The radius (r) of a circle is the distance from the center of the circle to the edge of the circle. The diameter (d) of a circle is the distance from one point on a circle through the center to another point on the circle. In other words, 2 times the radius equals the diameter.

Like we said above, pi is the ratio of a circle's circumference to its diameter. Therefore, we can use pi to calculate the area and circumference of a circle.

Area

The formula to calculate the area of a circle is πr^2 (pi times radius squared). If 9700 is the radius, then the area of the circle is pi times 9700 squared:

3.14 x 9700^2 =
30473.4487398133

If 9700 is the diameter, then you first have to divide 9700 by 2 to get the radius and then calculate pi times radius squared:

9700 / 2 = 4850
3.14 x 4850^2 =
73860650

Circumference

The formula to calculate the circumference is 2πr (2 times pi times radius). If 9700 is the radius, then the circumference of the circle is 2 times pi times 9700:

2 x 3.14 x 9700 =
60916

If 9700 is the diameter, then you first have to divide 9700 by 2 to get the radius and then calculate 2 times pi times radius:

9700 / 2 = 4850
2 x 3.14 x 4850 =
30458

Note: Instead of dividing 9700 by 2 above, you could also have simplified the formula because 2 times pi times radius is the same as pi times diameter. Thus, like we said at the top of this page, 9700 times pi is the circumference of the circle if 9700 is the diameter.

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