
    Design a function that calculates the total surface area of a geometric learning block, where each face is a perfect square and all edges are equal in length, to help students master 3D shape calculations. The function should accept the length of any single edge as input and return the total surface area of all six faces combined.
    

    
def surfacearea_cube(l):
    """
    Design a function that calculates the total surface area of a geometric learning block, where each face is a perfect square and all edges are equal in length, to help students master 3D shape calculations. The function should accept the length of any single edge as input and return the total surface area of all six faces combined.
    

    """
def surfacearea_cube(l):
    """
    Design a function that calculates the total surface area of a geometric learning block, where each face is a perfect square and all edges are equal in length, to help students master 3D shape calculations. The function should accept the length of any single edge as input and return the total surface area of all six faces combined.
    

    """
    surfacearea = 6 * l * l
    return surfacearea