Q:

# How many sides does an octagon have?

A:

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.

## Keep Learning

Credit: lens-cap CC-BY 2.0

In 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.

Sources:

## Related Questions

• A:

An 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.

Filed Under:
• A:

To draw an octagon to scale, first determine how big the octagon is to be. Draw the top line of the octagon to the desired length using a ruler. Use a protractor to determine a 135-degree angle from the end of the top line, and then use the ruler to draw a line the same length as the first at that angle. Repeat the process for all eight sides of the octagon.

Filed Under:
• A:

An octagon is a shape most people can recognize right away; it has eight equal length sides and eight equal angles. You need a ruler, a protractor, a pencil and a piece of paper to construct an octagon.