def euc_distance(vertex, circle_obstacle):
    """
    Finds the distance between the point and center of the circle.

    vertex: Vertex in question.
    circle_obstacle: Circle obstacle in question.

    return: Distance between the vertex and the center of the circle.
    """
    x = vertex[0] - circle_obstacle.position[0]
    y = vertex[1] - circle_obstacle.position[1]
    
    dist = ((x ** 2) + (y ** 2)) ** 0.5
    
    return dist