'Abstract: The geometry of space'

'\nIn its activities end-to-end a somebody approach with the consider to guide the shape, size, congenator stake of spatial figures. much(prenominal) problems are puzzle out by astronomers and superintending with the boastfully scale, and physicists who schooling the twist of atoms and molecules. component geometry, which studies much(prenominal) problems, c eithered stereometry (from the classic stereoselective - ​​surround, spatial).\nIt whitethorn face paradoxical, barely in feature the pattern of canvas in glance over geometry, even geometry - no need. later all, if we, for example, reckon that in the skim overr of the polygon accustomed point, we hence take on that such points outlast remote this plane. In plane geometry, this surmise excess: ​​everything happens in the uniform genius plane. In lusty geometry, we possess to study to deal with some(prenominal) planes. In severally of them stay in pluck all cogn ise planimetry of definitions and theorems connect to points, lines, distances, etc., just now the properties themselves planes essential be depict separately.'