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# What Do All Sides of a Triangle Add up To?

**When the lengths of all sides of a triangle are added, the result is called the perimeter of the triangle.** In general, a perimeter is the distance of the curve that borders a lamina or a two-dimensional closed planar surface. Half of a triangle's perimeter is called the semiperimeter.

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The sides of a triangle can be used to calculate other properties of the triangle. For instance, the area of a triangle can be computed using Heron's formula, which requires all sides and the semiperimeter as given. The lengths of the sides, in conjunction with the measurements of the angles, are also important factors in triangle geometry, inequalities and trigonometry.

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Q:
## What Is the Perimeter of a Triangle?

A: The perimeter of a triangle is the total distance around its three outer sides. If a triangle has side lengths equal to D, E and F, then its perimeter is t... Full Answer >Filed Under: -
Q:
## How Do You Find the Perimeter of a Polygon?

A: To find the perimeter of a polygon, add the lengths of each side together. The sum is the total perimeter. Full Answer >Filed Under: -
Q:
## How Do You Use a Formula to Find the Perimeter of a Triangle?

A: You can calculate the perimeter of any object by adding the length of its sides. With a few simple measurements, you can quickly find the perimeter of a tr... Full Answer >Filed Under: -
Q:
## How Can You Find the Perimeter of a Hexagon?

A: Determine the perimeter of a hexagon by adding the length of its 6 sides. If it is a regular hexagon, where the lengths of all sides are equal, the perimet... Full Answer >Filed Under: