# How to Find the Perimeter of a Triangle?

The "perimeter" is the distance around a closed plane. In this article, you will learn how to calculate the perimeter of a triangle in four easy steps.

http://www.wikihow.com/Find-the-Perimeter-of-a-Triangle

## How to Find the Perimeter of a Isosceles Triangle?

It is easy to calculate an isosceles triangle's perimeter because it is a simple shape. A triangle, also known as a trigon, is a polygon with three interior angles and three sides. Triangles are cl...
Read More »

http://www.ehow.com/how_8412346_perimeter-isosceles-triangle.html

## How to Find the Perimeter of a Triangle With an Unknown Variable?

The perimeter of a triangle is the sum of the lengths of all of its 3 sides. If you know 2 of the side lengths of a triangle and the angle between the two, you can calculate the length of the third...
Read More »

http://www.ehow.com/how_8380584_perimeter-triangle-unknown-variable.html

## How to Find the Perimeter With a Ruler?

The perimeter is the distance around an object. If you have a ruler, this is a simple calculation. You need to know the measurement of each side of your object. Once you have the measurements for e...
Read More »

http://www.ehow.com/how_8342424_perimeter-ruler.html

## How to Find the Perimeter of a Quadrangle?

A quadrangle is any figure that has four sides to it. Some examples of quadrangles are squares, rectangles and a parallelograms. The perimeter of the quadrangle is the sum of the length of each sid...
Read More »

http://www.ehow.com/how_8188524_perimeter-quadrangle.html