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Mathematics, 12.06.2020 13:57 nakarelinp0p303

Planes Q and R intersect. Lines d and c are vertical on plane R and form a right angle with line B on plane Q. Line B is horizontal on plane Q. Line a is slightly diagonal on plane Q. In the diagram, the only figure that could be parallel to line c is

line a.
line b.
line d.
plane Q.

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Planes Q and R intersect. Lines d and c are vertical on plane R and form a right angle with line B o...
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