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A triangular pyramid is cut by a plane in which case is the cross section a quadrilateral

1 Answer

6 votes

Answer:

when the plane intersects the base and all three lateral faces of the pyramid

Explanation:

When a plane intersects a plane, it forms a line.

A triangular pyramid has four faces.

To form four straight lines and therefore a quadrilateral, the intersecting plane must intersect all four faces.

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