Question

choose all the figures that have a rectangular cross - section.

Explanation:

Step1: Analyze first figure

The first figure is a triangular - based pyramid. Its cross - sections are triangles, not rectangles.

Step2: Analyze second figure

A cube is a special type of rectangular prism. Any cross - section parallel to its faces will be a rectangle.

Step3: Analyze third figure

The third figure is a square - based pyramid. Its cross - sections are triangles or trapezoids, not rectangles.

Step4: Analyze fourth figure

A cylinder's cross - sections parallel to the bases are circles, and non - parallel cross - sections are ellipses or oval - like shapes, not rectangles.

Step5: Analyze fifth figure

A cone's cross - sections parallel to the base are circles, and non - parallel cross - sections are ellipses or hyperbolic - like shapes, not rectangles.

Answer:

The cube (the second figure) has a rectangular cross - section.