3 years ago

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

Mathematics

2 answers:

Fed [463]3 years ago

8 0

Answer:

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

Step-by-step explanation:

In order to get a quadrilateral, that is, a polygon with 4 sides, it is necessary that the plane intersect 4 faces of the 3d shape. A triangular pyramid has four faces, a base and three lateral faces. So, the plane have to intersect them all.

Vika [28.1K]3 years ago

5 0

When you cut it directly to the middle...then the cross section will be an isosceles trapezoid... Which is also a quadrilateral

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