# How to find the surface area of a right triangular prism?

We find the total area of all the sides and faces of a right triangular prism to determine its surface area.

## Answer: The formula to calculate the surface area of a right triangular prism is given by bh + (s1_{ }+ s2_{ }+ h) L

A right triangular prism is a three-dimensional solid that has three rectangular sides and two right triangular faces.

**Explanation:**

The formula to calculate the surface area of a right triangular prism is given as bh + (s1_{ }+ s2_{ }+ h) L

Here, 'b' is the bottom edge of the base triangle, 'h' is the height of the base triangle, s1 and s2 are the two edges of the base triangle.

Let us take an example to find the surface area of a right triangular prism. Let the base of a right triangle be 5 units, the height of the triangle be 12 units, the length of a prism be 11 units and the hypotenuse of a right triangle be 13 units.

Surface area of a right triangular prism = 5 × 12 + (5 + 13 + 12) × 11 squared units

= 60 + (30) ×11 squared units

= 390 squared units