Q:
# Who Invented the Circle?

Since circular creations appear throughout nature, no man can be credited with the invention of the circle. From the cross-section of a plant stem to the moon and the sun, circles appear everywhere in nature.

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Ancient mathematicians, astronomers and engineers observed, measured and were inspired by the circle. Egyptian engineers used methods to compute areas and volumes for circles. As early as 1700 B.C., the Rhind papyrus records a method to find the area of a circular field. Written in 300 B.C., “Book 3” of Euclid's “Elements” deals with the characteristics of circles. Plato's “Seventh Letter” presents a detailed definition and explanation of the circle and the author’s conclusion that no one has ever seen a perfect circle, only approximations.

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Q:
## How Do You Convert Circumference to Diameter?

A: To calculate a circle's diameter from its circumference, one should divide the circumference by the constant pi, which is an irrational number approximatel... Full Answer >Filed Under: -
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## How Do You Find the Center of a Circle?

A: The center of a circle can be determined by finding the point of intersection of the perpendicular bisectors of two of its chords. This is accomplished usi... Full Answer >Filed Under: -
Q:
## Is a Circle a Polygon?

A: A circle is not a polygon because it does not conform to the definition of a polygon. The definition of a polygon is a closed figure formed by straight lin... Full Answer >Filed Under: -
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## What Is the Formula for the Area of a Circle?

A: The formula for the area of a circle is pi multiplied by the radius of the circle squared. The radius of the circle is the length of a straight line stretc... Full Answer >Filed Under: