Elementary Geometry

ABCD adjacent altitude angle included angles are equal axis base and altitude bisect centre chord circumference coincide conceived cone construct convex surface COROLLARY 1.-The COROLLARY.-The cylinder diagonals diameter dicular diedral distance draw drawn equal angles equally distant equiangular equilateral equivalent exterior angles faces facial angles frustum Geometry given angle given line given point greater Hence homologous sides inscribed intersect isosceles Let ABC lune middle point number of sides oblique lines opposite sides parallelogram parallelopiped pass pendicular perimeter perpen plane MN prism Problem.-To produced PROPOSITION VII prove pyramid Q. E. D. PROPOSITION quadrilateral radii ratio rectangle regular polygon revolved right angles S-ABC SCHOLIUM segment semi-circumference similar slant height solid solid angle sphere spherical angle spherical polygon spherical triangle square straight line supplement tangent Theorem Theorem.-The triedrals vertex vertices volume whence ليا