## Essentials of solid geometry, including spherical geometry |

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### Contents

CHAPTER PAGE 1 Lines and Planes | 1 |

Lines and Planes in Space | 5 |

Dihedral and Polyhedral Angles | 22 |

12 other sections not shown

### Common terms and phrases

altitude angles are equal arcs axis base and altitude chord circular cylinder conical surface convex Corollary cube diagonal diameter dihedral angle Draw elements equal circles equation equilateral EXERCISES face angles feet figure Find the area Find the lateral Find the volume frustum given distance given line given point hypotenuse inscribed intercept interior angles intersecting planes lateral area lateral edges lateral faces line is perpendicular line segment line segment joining lines are parallel locus of points longitude oblique parallel lines parallelepiped parallelogram perimeter plane geometry plane parallel planes intersect points equidistant polar triangle pole polyhedral angle polyhedron Prove pyramidal surface quadrilateral radii radius ratio rectangle rectangular solid regular polygon regular pyramid right circular cone right prism right section right triangle skew lines slant height solid geometry sphere spherical angle spherical degrees spherical excess spherical polygon spherical triangle STATEMENTS straight line tangent Theorem third plane total area vertex