
    Calculate the lateral surface area of a vehicle's cylindrical fuel tank to determine the amount of protective coating needed during scheduled maintenance inspections. The tank's dimensions are defined by its radius (r) and height (h), and the coating must cover the entire curved surface area, excluding the top and bottom circular faces.
    

    
def lateralsuface_cylinder(r, h):
    """
    Calculate the lateral surface area of a vehicle's cylindrical fuel tank to determine the amount of protective coating needed during scheduled maintenance inspections. The tank's dimensions are defined by its radius (r) and height (h), and the coating must cover the entire curved surface area, excluding the top and bottom circular faces.
    

    """
def lateralsuface_cylinder(r, h):
    """
    Calculate the lateral surface area of a vehicle's cylindrical fuel tank to determine the amount of protective coating needed during scheduled maintenance inspections. The tank's dimensions are defined by its radius (r) and height (h), and the coating must cover the entire curved surface area, excluding the top and bottom circular faces.
    

    """
    lateralsurface = 2 * 3.1415 * r * h
    return lateralsurface