A triangular prism has a triangular cross-section. A rectangular prism has a rectangular cross-section.
Rectangular Hollow Section Pipe means that shape of cross-section of RHS pipe is not round or circle but rectangular or oblong.
It is a rectangle.
It is a rectangle which is similar to (but smaller than) the rectangular base.
A circle.
A triangular prism has a triangular cross-section. A rectangular prism has a rectangular cross-section.
Rectangular Hollow Section Pipe means that shape of cross-section of RHS pipe is not round or circle but rectangular or oblong.
It is a rectangle.
It is a rectangle which is similar to (but smaller than) the rectangular base.
A circle.
A cylinder has a circular cross section, a rectangular prism has a rectangular cross section.
A rectangular prism has a rectangular cross section whereas a cylinder has a circular cross section
It depends on the cross section which may be circular, elliptical, square, rectangular or of a more complex shape.
It is a rectangle which is similar to the base.
The cross section can be a triangle, rectangle or a hexagon.
square
The answer will depend on the shape (and size) of the box: some have a rectangular cross-section, others circular.