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    In the dihedral system, how is the intersection of a line with a spherical surface found?

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    Through a change of plane.
    Using an auxiliary plane that contains the line and cuts the sphere in a circle.Correct
    Projecting the line onto the center of the sphere.
    Bringing down the sphere.

    To find the intersection of a line with a spherical surface, an auxiliary plane is used that contains the line and cuts the sphere in a circle. The intersection of the line with this circle will give the points of intersection.

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