Cyclopedia of architecture, carpentry, and building : a general reference work (1912)
American Technical Society · Chicago : American Technical Society · leaf 75
rtices lie in thesurface of the sphere. A circumscribed polyedron is a polyedron whose faces are tangentto a sphere. A great circle is the intersection of the spherical surface anda plane passing through the center of a sphere, Fig. 84. A small circle is the intersection of the spherical surface… … 8Ga Fig. 8r,& Fig. 8Gc Illustrations of Method of Forming Conic Sections. Fig. 86d passnig through the vertex of a right circular cone forms an isosceles(nangle. If the plane is parallel to the base the intersection of the 56 MECHANICAL DRAWING 43 plane and conical surfaces will be the…
Architecture · Building
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