The surface area of a triangular prism is actually the total sum of the areas of the two bases of the prism (triangles), and the areas of the three lateral sides of the prism (rectangles).

The surface area of a triangular prism is actually the total sum of the areas of the two bases of the prism (triangles), and the areas of the three lateral sides of the prism (rectangles).

**To better understand, let's look at a simple example. In the following drawing, we have a right triangular prism: **

The area of each base of the right triangular prism is $6$ cm².

The lateral sides of the prism have areas of $8$ cm, $10$ cm, $12$ cm.

The surface area of this prism can be calculated using these data as follows:

$S=6\times2+8+10+12=42$

So, the surface area of the prism is $42$ cm².

**If you are interested in learning how to calculate areas of other geometric shapes, you can enter one of the following articles:**

- How is the area of a trapezoid calculated?
- How to calculate the area of a triangle
- The area of the parallelogram: what is it and how is it calculated?
- Circular area
- How is the area of a rhombus calculated?
- How to calculate the area of a regular hexagon?
- Area of the rectangle
- How to calculate the area of an orthohedron

**and in case you are looking for more information about Triangular Prism, you might be interested in the following articles:**

- Right triangular prism
- The bases of the right triangular prism
- The lateral faces of the prism
- Lateral edges of a prism
- Height of the prism
- The volume of the prism
- Surface area of triangular prisms

**In the blog of** **Tutorela**** you will find a wide variety of mathematics articles**

Related Subjects

- Area
- The Pythagorean Theorem
- Square
- Area of a square
- Triangle
- Area of a right triangle
- Area of Isosceles Triangles
- Area of a Scalene Triangle
- Area of Equilateral Triangles
- Cylinder Area
- Cylinder Volume
- Lateral surface area of a rectangular prism
- Right Triangular Prism
- Bases of the Right Triangular Prism
- The lateral faces of the prism
- Lateral Edges of a Prism
- Height of a Prism
- The volume of the prism