# What is the Perimeter of a Triangle?

#### What is the perimeter of a triangle?

Perimeter is the total length around a plane figure and it is simply the sum of all the sides. For a triangle, there are two different ways to find its perimeter depending on the type of triangle you are dealing with. An isosceles triangle has two equal sides and an equilateral triangle has three equal sides.

The perimeter of a triangle can also be found by using the Pythagorean theorem where a2 + b2 = c2. In both cases, you are adding up all the lengths of the sides of the triangle to get the perimeter.

Another way to calculate the perimeter of a triangle is to use the tangent ratio method. In this method, you divide the triangle into two equal parts and measure the length of one of the sides to find the other side’s tangent ratio. Then you add the tangent ratios of each of the other two sides to find the length of the third side and then you combine all three to find the perimeter of the triangle.

The perimeter of a triangle is an important concept to understand as it is used in many different situations and can help you solve problems quickly. Whether you are working with an isosceles, equilateral or scalene triangle, understanding the perimeter of a triangle can help you quickly and efficiently find any of its sides. In addition, learning the perimeter of a triangle can be used to help you find other important information about the triangle such as its center and the incenter or the point of closest convergence between its sides.