So far we have learnt about surface areas and volumes of combinations of two or more basic solids like right circular cone, right circular cylinder, sphere etc.. In this section , we shall learn about a solid which is a part of a right circular cone when it is cut by a plane parallel to the base of the cone. Such a solid is called a Frustum.
FRUSTUM: If a right circular cone is cut off by a plane parallel to its base, then the portion of the cone between the cutting plane and the base of the cone is called a frustum of the cone.
HEIGHT OF FRUSTUM: The height or thickness of a frustum is the perpendicular distance between its two circular bases.
SLANT HEIGHT: The slant height of a frustum of a right circular cone is the length of the line segment joining the extremities of two parallel radii, drawn in the same direction, of the two circular bases.
FRUSTUM: If a right circular cone is cut off by a plane parallel to its base, then the portion of the cone between the cutting plane and the base of the cone is called a frustum of the cone.
HEIGHT OF FRUSTUM: The height or thickness of a frustum is the perpendicular distance between its two circular bases.
SLANT HEIGHT: The slant height of a frustum of a right circular cone is the length of the line segment joining the extremities of two parallel radii, drawn in the same direction, of the two circular bases.
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