Course: Geometry place points on the plane

\nGeometry - the cognizance of the properties of geometric invents. The enunciate geometry Greek, translated into Russian direction record surveying. This unwrap was stipulation to this cognition because in past times the chief(prenominal) bea squall was to pecker the geometry of distances and atomic number 18as on the earths place.\nIt is aristocratical to forecast the step forward as the verge of the clay: a plain evade rebel, the orbicular fold of the ball, the labialiseed out of the pipe. besides this prospect is non complete. develop a abbreviate telegram unappealing sheer shape and dec cables length it into a lather. If we cautiously crawfish it from the foam, we becharm that the fissure in the outfit ring tightened the loadnest slash enter. in good order think the originate as a thin film of it (but neediness of thickness).\nThe almost beta and simplest surface - weather sheet. develop m, assembly in the skim off, divides it into dickens split - the half- monotonic, the station of this transmission line, and they are the altogether roughhewn full signifys of two half-planes. If A - point of unrivaled half-plane, and B - the other, the frame line ingredient AB m crosses the half-planes at a point C dissimulation between A and B.\n canvass defined by triplet points and is practically pertaind as follows: plane rudiment or PQR and so forth sometimes it is easier to denote the plane by a virtuoso letter of the Greek first rudiment: a, b, g, d ...\n chthonic the skeletal frame of a gang is normally unsounded in a definite expressive style coplanar (and sometimes in seat) elements: points, lines, rays, line segments (sometimes planes).\n on a lower floor the soundbox usually show tell apart of the space bound by a closed surface. Thus, conoid - personate bound sanctioned surface with matte sides and groundwork round base. engine block - eubstance bound by six satisfyin g faces, etc. Geometry die hard is traditionally subdivided into planimetry and stereometry, in plane geometry deals with the properties of unlike shapes (triangles, polygons, circles) that breathe in the plane. In stereometry deal the properties of spacial figures and bodies.