Last updated on June 21st, 2020

There are few ways to find the area of triangle but the most common way to find the area of a triangle is to take half of the base times the height. There are different formulas for finding the area of a triangle, depending on what information you know.

A triangle is half as big as the rectangle that surrounds it, which is why the area of a triangle is one-half base times height.

The **area** of a triangle is the interior space enclosed by its three straight sides. Though always triangle-shaped, it is measured in square units.

The **base** of a triangle is the side used to create the altitude, or height.

The **altitude or height** is the perpendicular of the triangle from that base.

## Using the Base and Height

The base is one side of the triangle. The height is the measure of the tallest point on a triangle. It is found by drawing a perpendicular line from the base to the opposite vertex.

The formula is **Area =** ** ^{1}⁄_{2}bh **where

**“b”**is the length of the triangle’s base, and

**“h”**is the height of the triangle. Plug the base and height into the formula

**.**Multiply the two values together, then multiply their product by

**. This will give you the area of the triangle in square units.**

^{1}⁄_{2}## How to find the area of a right triangle

Two sides of a right triangle are perpendicular, one of the perpendicular sides will be the height of the triangle. The other side will be the base. If the height and/or base is unstated, you are given them if you know the side lengths. Thus you can use the **Area =** ** ^{1}⁄_{2}bh** formula to find the area.