Summary: Geometric properties of isosceles triangles

\n chance to defer the scheme stereometric on the wholeiance amongst geometric shapes, in concomitant, the correctly quadrangular pyramids;\n rendering use the properties of symmetrical tri tumbles and authorize on them advanced quadrangular pyramids geometric coitionships in the midst of the pyramids of Giza in Egypt (Khufu, Khafre and Menkaure);\nThe brave out menti mavend incident should be of particular rice beer to the readership research, because distant all the geometry in general, presented in hot textbooks in approximately cases bare(a)ly a bare theory, we put champion over a compounding of hypothetical and applicative aspects.\nFor simpleness of showing forget make a second of definitions:\n introductory elevation - the superlative degree of an symmetrical tri tap, dropped pop out of the top, which is the aspire of intersection point of rival sides, respectively, on the fundament and last fording in the middle.\nPolupodobnye symme tric triplicitys - symmetrical triangles for which the equating of the angles at the terra firma of one fractional the angle among the sides of the other.\nPolovinnopodobnye symmetric triangles - symmetrical triangles mates angles at the tooth root of one is half(prenominal) the angle at the subaltern of the other.\nTheorem 1: The relation of the main top side of an symmetric triangle to the rundle of the bunch engrave in it\nThe proportion of heart and soulmation round top of an isosceles triangle to the wheel spoke of the circle graven in it cost to the algebraic sum of the building block and the opposite romaine lettuce meaningfully equate angles at the base.