 ... are. called the upper and lower nappes. The generatrix in any one position is called an element of the surface. A cone is a solid bounded by a conical surface and a plane which cuts all its elements. The plane is then called the base of the cone ;...  Elements of Descriptive Geometry - Page 100by George Frederick Blessing, Lewis Andrew Darling - 1912 - 219 pagesFull view - About this book
 | William Taylor Campbell - Geometry - 1899 - 276 pages
...the cone is called a sector ; it is a part of a circle bounded by two radii and an arc. The height of a cone is the perpendicular distance from the apex to the base, as AP (see figure). In the cone you have made, this line passes through the centre of the base.... | |
 | Oscar Lynn Kelso - Arithmetic - 1903 - 302 pages
...apex to the center of the base is perpendicular to the plane of the base. The altitude of a pyramid is the perpendicular distance from the apex to the plane of the base ; thus, DN. A cone is a solid which has a circular base and which tapers uniformly to a point called... | |
 | Fletcher Durell - Geometry, Solid - 1904 - 232 pages
...conical surface; the elements of the cone Oblique circular are the elements of the conical surface; cone the altitude of a cone is the perpendicular distance from the 706. A circular cone is a cone whoso base is a circle. The axis of Si circular cone is the line drawn... | |
 | Edward L. Bates, Frederick Charlesworth - Building - 1913 - 226 pages
...is equal to area of basex one-third height, eg cone volume =rr^h. For an oblique pyramid, the height is the perpendicular distance from the apex to the plane of the base. Irregular prism : Divide into an even number of slabs by equidistant planes. Let sectional areas be... | |
 | Walter Burton Ford, Charles Ammerman - Geometry, Solid - 1913 - 176 pages
...The plane is then called the base of the cone ; and the conical surface is called the lateral surface of the cone. The altitude of a cone is the perpendicular distance from its vertex to its base. FIG. 218 A circular cone is one whose base is a circle. The axis of a circular... | |
 | Walter Burton Ford, Charles Ammerman - Geometry, Plane - 1913 - 376 pages
...The plane is then called the base of the cone ; and the conical surface is called the lateral surface of the cone. The altitude of a cone is the perpendicular distance from its vertex to its base. Fio. 218 268 VII, ยง 316] AREAS AND VOLUMES A right circular cone is a circular... | |
 | Walter Burton Ford, Charles Ammermann - Geometry, Modern - 1923 - 406 pages
...The plane is then called the base of the cone ; and the conical surface is called the lateral surface of the cone. The altitude of a cone is the perpendicular distance from its vertex to its base. FIG. 235. CIRCULAR CONE A circular cone is one whose base is a circle. The... | |
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