WHistory of geometryWAngle trisectionWApollonius of PergaWDivina proportioneWDe Prospectiva pingendiWDoubling the cubeWEgyptian geometryWEuclid's ElementsWGeometric mean theoremWLa GéométrieWGolden ratioWParallel postulateWPlastic numberWProblem of ApolloniusWPythagorean theoremWSquare trisectionWSquaring the circleWSurya SiddhantaWTetrahedron packingWHistory of trigonometry