How To Find The Area of a Triangle

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How To Find The Area of a Triangle

Knowing the measurements and the size of each and every one of the sides that go into making geometrical shapes is one thing, but knowing the total area that the shapes in questions take up is a completely different matter. While it might not seem as important now, figuring out the area of a shape with certain dimensions is something that you yourself will find yourself doing every now and again in the future, as well as something that people like designers and engineers have to face on a daily basis.

Learning how to find the area of certain shapes is not hard at all, and it usually involves calculating a formula using certain dimensions and measurements of that shape. That being said, how to find the area of a triangle?

Learn The Value Of The Base

A triangular pattern

We all know what a triangle looks like, with its 3 sides and sharp corners, however, the side that we are more interested in, for the purposes of this formula, is the base.

The base (b) is, as the name implies, the side at the very base of the triangle, often times it is the largest side of a triangle with the exception of the isosceles one.

More often than not, the value of the base will not be given to you, so you will have to find its value using the rules and principals of trigonometry as well as simple triangular calculation rules.

Find The Height

A triangular shaped building next to a clock tower

The height (h) of a triangle is the straight line that connects the base of the triangle to the angle that is furthest away from it. This usually splits the triangle up into right triangles and allows you to follow the Pythagorean theorem in order to find the value of the height itself.

Do be warned, you will need to pay close attention to this part because the height is one of the 2 variable components that go into the final area formula that you will have to deal with.

Calculate The Area

A triangular perspective pattern

The last thing that you will need to do, once you've got the values for the base and height of the triangle, is to calculate the area of the triangle. The formula for it is as follows: A = (bh) ÷ 2 where A is the area, b is the base and h is the height.

It is not a difficult formula to calculate at all and it is a very simple one to memorize because it makes sense, you are more or less getting the 2 main markers of a triangle, its base and shape, and averaging their lengths out in order to figure out the area that it takes.

Figuring out the area of a triangle is not a difficult job and it does not compare to other, more challenging shapes and formations, however, it is something that you will have to face sooner or later. Seeing as the formula itself is easy to calculate and memorize, the best thing that you can do is to get as much practice in as possible so that using the formula becomes second nature to you without you having to think much about it.

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