Side length of the equilateral base (must be positive)
Vertical height from base to apex (must be positive)
Calculates the base area: A = (√3 / 4) * a²
Gets the base side length.
Gets the vertical height.
Calculates the volume: V = (1/3) * baseArea * height
Represents a regular triangular pyramid (tetrahedron-like, but named for clarity).