An octagon has eight sides. The word derives from the Greek words "okto" meaning "eight" and "gonia" meaning "angle." In many countries throughout the world, an example of an octagon seen in everyday life is the red "Stop" sign.
Know MoreIn Christianity, the baptismal fonts are often octagonal in shape. This shape is to represent the eight days between the arrival of Christ in Jerusalem and His resurrection and rebirth eight days later. In Islam, an octagon is often placed in the center of a garden. The shape represents a transition between a square, which represents the earth, and a circle, which represents heaven.
Learn more about ShapesAn octagon has 20 diagonals. A shape's diagonals are determined by counting its number of sides, subtracting three and multiplying that number by the original number of sides. This number is then divided by two to equal the number of diagonals.
Full Answer >There are a total of 1,080 degrees in the interior of an octagon. The angles can be evenly divided into eight angles of 135 degrees, as in a regular octagon, or any random combination in an irregular octagon.
Full Answer >Based on the geometric definition of a polygon, a circle has no sides or infinite sides. According to the definition, a circle cannot have sides because it isn't made up of line segments that are connected by shared endpoints that form interior angles.
Full Answer >An n-gon is a polygon with "n" sides, where "n" is a placeholder for any number. The letter "n" is commonly used alongside other letters in mathematics and science as variables to represent unknown numbers.
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