Solid Geometry

altitude b₁ b₂ base edge bisect called circle circumference circumscribed congruent or symmetric convex coplanar COROLLARIES corresponding cube cylinder cylindrical space Definitions determine a plane diagonal diameter dihedral angle directrix draw equal altitudes equal bases equilateral Exercises face angles figure of prop frustum generatrix given plane given point great-circle arc intersecting planes lateral area lune measure oblique parallel planes perigon perpendicular plane angle plane contains plane determined Plane Geometry plane MN polar pole polyhedral angle polyhedron prismatic space Prismatoid Proof PROPOSITION prove pyramidal space radii radius rectangular parallelepiped regular pyramid respectively right circular cone right prism right section sides Similarly slant height Solid Geometry sphere spherical excess spherical polygon spherical surface spherical triangle square straight angle straight line Suppose tangent tetrahedron Theorem transverse section triangular prism trihedral vertex vertices Wentworth's