Triangular Prism Surface Area Calculator
Calculate total surface area of a triangular prism.
Enter dimensions above.
How to Use the Triangular Prism Surface Area Calculator
Enter the triangle side lengths and prism length to calculate the areas of the two triangular ends and three rectangular faces.
Practical Example
For a 3-4-5 triangular base and prism length 10, the two triangular ends total 12 square units and the rectangular faces total 120 square units.
Factors That Affect the Result
All three triangle sides must form a valid triangle. Use the same unit for every dimension and distinguish surface area from volume.
Frequently Asked Questions
Does total area include both triangular ends?
Yes.
Can any three side lengths be used?
They must satisfy the triangle inequality.
What units are returned?
Squared units.