Use this tool to quickly calculate the surface area of a triangular pyramid with your given measurements.

## Triangular Pyramid Surface Area Calculator

The Surface Area of a Triangular Pyramid Calculator determines the total area on the surface of the pyramid, which includes the base area and the area of the three triangular faces.

### How to Use the Calculator

Using the calculator is simple:

- Enter the length of the base edge (a) of the triangle.
- Enter the length of the slant height (l), which is the height from the base to the apex on one of the sides.
- Click the “Calculate” button to find the surface area.

### How It Calculates Results

The calculator uses the formula:

*Surface Area (SA) = Base Area + 2 * Base edge * Slant height*

where the base area is the area of the bottom triangle, which can be calculated using the formula for the area of a triangle.

### Limitations

The calculator assumes:

- The pyramid is a regular triangular pyramid, meaning all sides are equal.
- All edges are straight and the apex is directly above the center of the base.
- The values entered are numbers and not other characters.
- The input values for base edge (a) and slant height (l) are non-negative.