import math


def normal_to_angle(x, y):
    """
    Take two normal vectors and return the angle that they give.

    :type x: float
    :param x: x normal
    :type y: float
    :param y: y normal
    :rtype: float
    :return: angle created by the two normals
    """
    return math.atan2(y, x) * 180 / math.pi