Question

select the type of cross section formed when a rectangular pyramid is cut by a plane containing its altitude and perpendicular to its base. answer triangle hexagon rectangle circle submit answer

Explanation:

A rectangular pyramid's altitude runs from its apex perpendicular to the rectangular base. A plane containing this altitude and perpendicular to the base will pass through the apex and two opposite edges (or vertices) of the rectangular base, forming a closed figure with three straight sides.

Answer:

triangle