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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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## How do you figure out the circumference of a circle?

A: To find the circumference of a circle, multiply the diameter by pi or double the radius times pi. Pi is an unchanging number that rounds off to 3.14. Full Answer >Filed Under: -
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## 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: -
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## How do you divide a circle with eight equal pieces with three straight lines?

A: To divide a circle into eight equal pieces with three straight lines, first draw two diameters that partition the circle into four sections. Next, separate... Full Answer >Filed Under: -
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## How do you calculate the area of a circle?

A: To calculate the area of a circle, square the radius and multiply by pi (approximately 3.14). This enables you to find the area of any circle. Full Answer >Filed Under: