Plane and solid geometry . Tetrahedron Hexahedron Octahedron Dodecahedron Icosahedron BOOK VII 345 723. Historical Note. The Pythagoreans knew that there werefive regular polyhedrons, but it was Euclid who proved that there can beonly five. Hippasus (arc. 470 ), who discovered the dodecahedron, issaid to have been drowned for announcing his discovery, as the Pythago-reans were pledged to refer the glory of any new discovery back to thefounder.* PMSMS =* 724. Def. A prismatic surface is a surface generated by amoving straight line that continually intersects a fixed brokenline and remains pa
Plane and solid geometry . Tetrahedron Hexahedron Octahedron Dodecahedron Icosahedron BOOK VII 345 723. Historical Note. The Pythagoreans knew that there werefive regular polyhedrons, but it was Euclid who proved that there can beonly five. Hippasus (arc. 470 ), who discovered the dodecahedron, issaid to have been drowned for announcing his discovery, as the Pythago-reans were pledged to refer the glory of any new discovery back to thefounder.* PMSMS =* 724. Def. A prismatic surface is a surface generated by amoving straight line that continually intersects a fixed brokenline and remains parallel to a fixed straight line not coplanarwith the given broken line. £
Size: 2402px × 1040px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1910, booksubjectgeometr, bookyear1912
