Rectangle
an oval hemispere * * * * * The cross section must be 2-dimensional so it cannot be a hemispere - or hemisphere, even. I suggest the shape is lenticular: the shape of a convex lens (with equal radii of curvature).
The cross section of a pyramid shrinks from the shape of the base down to a point as you move along its axis from the base to the apex. The cross section of a prism is constant along its axis.
A circle
a rectangle.
a circle !
It is a rectangle.
The cross section of a shape refers to the shape obtained when the given shape is cut across a straight line. The cross section of a shape helps viewers to view inside of a given object by cutting through it.
an oval hemispere * * * * * The cross section must be 2-dimensional so it cannot be a hemispere - or hemisphere, even. I suggest the shape is lenticular: the shape of a convex lens (with equal radii of curvature).
The cross section is useful as it cuts across any type of shape. This is useful for architects who will be able to see the finer details of a structure.
The cross section, of a 3D object, is the 2D shape made when a 2D plane cuts across the 3D object. Often "cross section" refers to the shape made when the plane is at right angles to an axis of the 3D object but this need not be the case.
The shape of a transverse cross section of a cylinder is a circle.
A Saltire is a diagonal or St. Andrew's Cross - a cross, that is, in the shape of a letter X
A circle.
The cross section of cylinder along its length (parallel to the axis of symmetry has the shape of a rectangle.
It is sometimes referred to as the shape's "plan".
A cross-section of a cuboid is the two-dimensional shape that results from cutting the cuboid with a plane. It is formed by the intersection of the plane with the three-dimensional cuboid. The cross-section of a cuboid can be a rectangle, square, or even a triangle, depending on how the cuboid is cut. The shape and size of the cross-section will vary based on the orientation and angle of the cutting plane relative to the cuboid.
A circle.