Surface Area of a Triangular Pyramid Calculator – Easy & Accurate Results

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:

  1. Enter the length of the base edge (a) of the triangle.
  2. Enter the length of the slant height (l), which is the height from the base to the apex on one of the sides.
  3. 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.

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