Question

A pentigonal prism is cut by a plane perpendicular to the base. What is the shape of the cross section that is formed ?

A.a pentagon with one pair of equal sides
B.a trapezoid with one pair of parallel sides
C.a rectangle
D.a triangle
E.a hexagon

2

Answer 1

In a right pentagonal prism, the bases are pentagons and the lateral faces are rectangles. If we take a cross-section perpendicular to the base, this same cross-section will be parallel to the lateral faces. This means it will be the same shape as the lateral faces, which is a rectangle.

Explanation: