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# 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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## How do you find the arc of a circle?

A: To find the arc of a circle, divide the angle subtended at the center of the arc by 360 degrees, then multiply the answer by the circumference of the circl... Full Answer >Filed Under: -
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## 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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## How do you find the equation of a circle?

A: Find the equation of a circle using the formula (x-h)squared+(y-k)squared=r squared. Know that h and k represent the coordinates for the center, with h bei... Full Answer >Filed Under: -
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## How do you cut a circle into eight pieces with three cuts?

A: According to Programmer Interview, the circle must be cut into quarters using the first two cuts, and then the quarters must be stacked into one pile befor... Full Answer >Filed Under: