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A cone is a solid bounded by a conical surface and a plane •which cuts the conical surface. The plane is called the base and the curved surface the lateral area.
Cyclopedia of Carpentry and Contracting ...: Architectural drawing ... - Page 63
1910

## Elements of Geometry

George Washington Hull - Geometry - 1897 - 408 pages
...it a circle, as this is the only curve whose properties are discussed in elementary geometry. s 516. A Cone is a solid bounded by a conical surface and a plane cutting the surface; as S—ACB. The plane surface ACB is the base. The point S is the vertex. The...

## Plane and Solid Geometry

James Howard Gore - Geometry - 1898 - 232 pages
...ABC the Directrix, O the Vertex, and O-ABC, OA'B'C' are the two Nappes, and OB is an Element. 447. A Cone is a solid bounded by a conical surface and a plane which cuts all of the elements of the surface, as O-ABC. 448. This plane is called the Base, and the perpendicular...

## Plane and Solid Geometry: Inductive Method

Arthur A. Dodd, B. Thomas Chace - Geometry - 1898 - 492 pages
...vertex, the other below the vertex. These parts are called the upper and lower nappes, respectively. 579. A cone is a solid bounded by a conical surface and a plane. The plane is called the base of the cone, the conical surface is called the lateral, or convex surface....

## The Essentials of Geometry

Webster Wells - Geometry - 1899 - 196 pages
...of indefinite extent, OA'B'C. and O-ABC. These are called the upper and lower nappes, respectively. A cone is a solid bounded by a conical surface, and a plane cutting all its elements. The plane is called the base of the cone, and the conical surface the lateral...

## The Essentials of Geometry

Webster Wells - Geometry - 1899 - 178 pages
...of indefinite extent, 0-A'B'G' and 0-ABC. These are called the upper and lower nappes, respectively. A cone is a solid bounded by a conical surface, and a plane cutting all its elements. The plane is called the base of the cone, and the conical surface the lateral...

## Plane and Solid Geometry

William James Milne - Geometry - 1899 - 398 pages
...which are called the lower and upper nappes respectively. Q-ABCD and QA'B'C'D' are the lower and 610. A solid bounded by a conical surface and a plane which cuts all its elements is called a Cone. The plane surface is called the base and the conical surface is...

## Plane and Solid Geometry

Arthur Schultze, Frank Louis Sevenoak - Geometry - 1902 - 394 pages
...surface formed above and below the vertex when the length of the generatrix is unlimited. 645. DEF. A cone is a solid bounded by a conical surface and a plane cutting all its elements. 646. DEF. The lateral area of the cone is the conical surface ; the base...

## Plane and Solid Geometry

Arthur Schultze - 1901 - 392 pages
...surface formed above and below the vertex when the length of the generatrix is unlimited. 645. DBF. A cone is a solid bounded by a conical surface and a plane cutting all its elements. 646. DBF. The lateral area of the cone is the conical surface ; the base...