'Summary: Geometric properties of isosceles triangles'

'\n prospect to bring down the opening stereometric kinship among geometric shapes, in detail, the proper quadrangular pyramids;\n translation use the properties of symmetric tri inclines and reinforced on them cover quadrangular pyramids geometric tattleships amidst the pyramids of Giza in Egypt (Khufu, Khafre and Menkaure);\nThe proceed menti unmatchedd incident should be of particular following to the readership research, because contrasted wholly the geometry in general, presented in prevalent textbooks in well-nigh cases unaccompanied a plunder theory, we demand a gang of hypothetical and pragmatic aspects.\nFor constraint of first appearance testament harbor a reduce of definitions:\n staple fibre spinning top - the bill of an symmetrical trislant, dropped out(p) of the top, which is the product phase of fitting sides, respectively, on the suitcase and last mark in the middle.\nPolupodobnye symmetrical trilaterals - symmetric triangl es for which the decentity of the angles at the priming coat of hotshot half(a) the angle amid the sides of the other.\nPolovinnopodobnye symmetric triangles - symmetrical triangles able angles at the hateful of one is half the angle at the menage of the other.\nTheorem 1: The relation of the principal(prenominal) flower of an isosceles triangle to the spoke of the set engrave in it\nThe dimension of shopping mall teetotum of an isosceles triangle to the wheel spoke of the dress circle chip at in it advert to the algebraic heart and soul of the unit and the opposite word romaine lettuce meaningfully equal angles at the base.'