Sides in Geometry

In geometry, a side is a line segment that forms part of a shape, such as a polygon or a solid figure. The number of sides a shape has depends on its type. Here are key concepts related to sides in geometry:

Polygons

A polygon is a closed two-dimensional shape made up of line segments. The line segments are the sides of the polygon. The number of sides in a polygon determines its name. For example:

A 3-sided polygon is called a triangle.
A 4-sided polygon is called a quadrilateral.
A 5-sided polygon is called a pentagon.
A 6-sided polygon is called a hexagon.
And so on...

Study Guide

To understand sides in geometry, it's important to remember the following key points:

Identify the number of sides in different polygons, and be able to name each polygon based on its number of sides.
Understand that the sides of a polygon are line segments that connect the vertices (corners) of the shape.
Recognize that the sum of the interior angles of a polygon can be found using the formula: (n-2) * 180 degrees, where n is the number of sides of the polygon.
Be able to calculate the perimeter of a polygon by adding the lengths of all its sides together.