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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def get_tri_area(pts):
 """ Given a list of coords for 3 points, Compute the area of this triangle. Args: pts: [a, b, c] three points """

    a, b, c = pts[0], pts[1], pts[2]
    v1 = np.array(b) - np.array(a)
    v2 = np.array(c) - np.array(a)
    area_tri = abs(sp.linalg.norm(sp.cross(v1, v2)) / 2)
    return area_tri