PDF questions

A cross-section may be a shape we get when cutting 3D figures by a plane.
Example:
Cross-section of a cone.
There are two different types of the cross-section.
1. Horizontal or parallel cross-section
2. Vertical or perpendicular cross-section

Horizontal cross-section: A plane cuts the solid shape in the horizontal direction(parallel to the base).

Vertical cross-section: A plane cuts the solid shape in the vertical direction(perpendicular to the base).

Example:
The horizontal cross-section of the cylinder is a circle and the vertical cross-section of the cylinder is a rectangle.

 Horizontal cross-section Vertical cross-section

Some of the $$3D$$ shapes with its horizontal cross-section are given below.