 | George Albert Wentworth - 1904 - 496 стор.
...the lateral faces. It bisects the base of the lateral face in which it is drawn. . § 149 639. DBF. A truncated pyramid is the portion of a pyramid included between the base and a section made by a plane cutting all the lateral edges. A frustum of a pyramid is the portion of a pyramid... | |
 | Charles Davison - 1905 - 140 стор.
...44. A regular hexagonal, etc., pyramid is one in which the base is a regular hexagon, etc. DEF. 45. A truncated pyramid is the portion of a pyramid included between the base and a plane section inclined to the base. DEF. 46. A frustum of a pyramid is the portion of a pyramid included... | |
 | American School (Chicago, Ill.) - 1906 - 580 стор.
...revolution of a right triangle about one of the perpendicular sides as an axis. A frustum of a cone is the solid included between the base and a plane parallel to the base. TANGENT PLANE. The altitude of a frustum of a cone is the perpendicular distance between the bases.... | |
 | Joseph Claudel - 1906 - 758 стор.
...as their bases. If the bases are equal or equivalent, the sections are also. 827. The frustum of a pyramid is the portion of a pyramid included between the base and a section made by a plane parallel to the base. The base of the pyramid and the section are the bases... | |
 | American School (Lansing, Ill.) - 1906 - 426 стор.
...rectangular parallelopiped all of whose faces are squares. A truncated prism is the portion of a prism included between the base and a plane not parallel to the base. PYRAMIDS. A pyramid is a polyedron one face of which is a polygon (called the base) and the other faces... | |
 | 1906 - 424 стор.
...rectangular parallelopiped all of whose faces are squares. A truncated prism is the portion of a prism included between the base and a plane not parallel to the base. PYRAMIDS. A pyramid is a polyedron one face of which is a polygon (called the base) and the other faces... | |
 | American School (Chicago, Ill.) - 1906 - 586 стор.
...rectangular parallelepiped all of whose faces are squares. A truncated prism is the portion of a prism included between the base and a plane not parallel to the base. PYRAMIDS. A pyramid is a polyedron one face of which is a polygon (called the base) and the other faces... | |
 | American School (Lansing, Ill.) - 1907 - 360 стор.
...rectangular parallelopiped all of whose faces are squares. * A truncated prism is the portion of a prism included between the base and a plane not parallel to the base. PYRAMIDS. A pyramid is a polyedron one face of which is a polygon (called the base) and the other faces... | |
 | American School of Correspondence - 1908 - 474 стор.
...is a regular polygon and whose vertex lies in the perpendicular erected at the center of the lsi.se. A truncated pyramid is the portion of a pyramid included between the base and a plune not parallel to the base. A frustum of a pyramid is the solid included between the base and a... | |
 | Webster Wells - 1908 - 336 стор.
...prism is a right prism whose base is a regular polygon. 419. A truncated prism is a portion of a prism included between the base, and a plane, not parallel to the base, cutting all the lateral edges. The base of the prism and the section made by the plane are called the... | |
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The slant height of a regular pyramid is the altitude of any one of the lateral faces, as WE. 
