Description
A detailed tutorial on how to identify pentagons. Step by step tutorial including several examples of identifying pentagons for reference.
Overview
A pentagon is any polygon that has five sides. Pentagons can either be regular or irregular. Regular pentagons are close to the shape of a house. Irregular pentagons are any other shape that has five sides, provided that it is still considered a polygon.
Description
A detailed tutorial of what a semiperimeter is. Step by step tutorial including a visual example of a semiperimeter for reference.
Overview
In geometry, a semiperimeter of a polygon (squares, rectangles, triangles, or any closed and none-rounded shape) is simply half a perimeter – like a radius would be for a circle, almost. If you already have the perimeter of the figure, you can easily obtain the semiperimeter by dividing it in half. The semiperimeter is given its own seperate variable and identity because it is used sometimes in mathematical equations, such as Heron’s formula.
Description
This video shows pictures of different types of polygons, and labels them as either regular or irregular. It gives the different traits of both regular polygons and irregular polygons, and shows how and why they are different. It also identifies what a polygon is. Many different examples are provided in the video.
Overview
Polygon is probably a term you\’ve heard before. It refers to a shape – actually, it refers to many different shapes. A polygon is a shape that consists of at least three straight lines that connect to form either a regular or an irregular shape. We have all seen polygons before – Squares and triangles are both polygons. So are pentagons (a 5-sided figure), hexagons (a 6-sided figure), and octagons (an 8-sided figure). Any of these that have sides of the same length and angles measuring the same degrees are called regular polygons. There are also such things as irregular polygons. When a shape has different sized lines and different types of angles, it is called an irregular polygon.
