[填空题]
A zipline is installed on a mo:i wnbi4n b, nfv6(bom7;lj7f ux+nh)o o z0pligqksjp6v0)63 i(1crantain range as a tourist attraction. The locations of the stops along the zipline can be described by coordinates (in metres) in reference to the xx, yr a x)0pnhz3+c1lois)kpj(q0 6v6 iogy, and zz-axes, where the xx and yy axes are in the horizontal plane and zz-axis is in the vertical plane.
Stop G, at ground level, has coordinates (1000,20,0)(1000,20,0). Stop, T, located near the top of the mountain, has coordinates (10,15,550)(10,15,550).
1.Find the distance between stops G and T, rounding your answer to the nearest metre. m
A new stop, M, is built exactly half-way between stops G and T.
2.Find the coordinates of stop M.( , , )
3.Write down the height of stop M, in metres, above the ground.
