Definition:Height of Solid Figure
Definition
The height of a solid figure is the length of a perpendicular from the base to the point or points most distant from it.
Height of Parallelepiped
The height of a parallelepiped is the length of the perpendicular between the planes of the bases.
In the above diagram, $h$ is the height of the parallelepiped one of whose bases is $AB$.
Height of Prism
The height of a prism is the length of the perpendicular between the bases of the prism.
In the above diagram, the distance $h$ is the height of the prism $AJ$.
Height of Pyramid
The height of a pyramid is the length of the perpendicular from the plane of the base to its apex.
In the above diagram, $h$ is the height.
Height of Cone
Let a perpendicular $AE$ be dropped from the apex of a cone to the plane containing its base.
The length $h$ of the line $AE$ is the height of the cone.
Height of Cylinder
The height of a cylinder is the length of a line segment drawn perpendicular to the base and its opposite plane.
In the above diagram, $h$ is the height of the cylinder $ACBDFE$.