Plane and Solid Geometry

ABCD altitude approaches axis base bisector bisects called chord circle circumference circumscribed coincide common cone Construct contained corresponding cubes cylinder Data denote diagonals diameter difference dihedral angles direction distance divide Draw drawn equal equidistant equilateral triangle equivalent extremities faces figure Find formed four frustum given given line given point greater half Hence homologous included inscribed interior angles intersecting isosceles triangle joining length less limit mean measure meet middle point opposite sides parallel parallel lines parallelogram parallelopiped perimeter perpendicular plane polygon polyhedron prism produced Proof proportional Proposition prove pyramid quadrilateral radii radius ratio rect reference regular polygon Represent respectively right angles right triangle segment sides similar sphere spherical triangle square straight line student surface symmetrical tangent Theorem third triangle triangular trihedral vertex vertical angle volume