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# What is the function of Pi?

The mathematical constant pi has many uses, most of which are associated with the circle or circular objects. Often, pi is used for geometric purposes, such as calculating the area of a circle or the volume of a sphere.

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Pi is an irrational number that does not have a specific value that can be shown. Often, the value is rounded to 3.14 or shown as the fraction 22/7. Outside of mathematics, pi is also used in physics for calculating measurements such as angular velocity. Pi is also necessary when converting between degrees and radians, as one radian is equal to pi/180 degrees.

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Q:
## How do you find the area of a circle?

A: Find the area of a circle using the equation A=?r^2. The area is equal to the radius, which is the distance from the center of the circle to its edge, time... Full Answer >Filed Under: -
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## What are some ways to measure a radius?

A: The most direct way of measuring the radius of a circle is to measure from the center of the circle to the outside border. If you cannot determine the cent... Full Answer >Filed Under: -
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## How do you figure area?

A: The area of any simple shape, such as a circle, triangle or rectangle, can be found by taking a series of measurements from the shape and plugging them int... Full Answer >Filed Under: -
Q:
## What are internally tangent circles?

A: Internally tangent circles occur when two circles on the same plane intersect at exactly one point and one circle lies within the other. Externally tangent... Full Answer >Filed Under: