Function triangularprismA

triangularprismA(a: number, b: number, c: number, h: number): number
Calculates the surface area of a triangular prism.
Parameters
- a: number
  The base's first side length
- b: number
  The base's second side length
- c: number
  The base's third side length
- h: number
  The height
Returns number
Example
```
// Returns 342.6099033699941
const area = Chalkboard.geom.triangularprismA(9, 7, 12, 10);
```
- Defined in Chalkboard.geom.ts:526