Function trianglesidesA

trianglesidesA(a: number, b: number, c: number): number
Calculates the area of a triangle with its side lengths
Parameters
- a: number
  The first side length
- b: number
  The second side length
- c: number
  The third side length
Returns number
Example
```
// Returns 31.30495168499705
const area = Chalkboard.geom.trianglesidesA(9, 7, 12);
```
- Defined in Chalkboard.geom.ts:510