Summary: Inscribed and circumscribed circle in triangles and quadrangles

\n\n comment: if all parties implicated polygonal shape sight, called the rotary converter carve in the polygon and polygon - described round the circle.\nTheorem: in whatever trilateral depose embark a circle wizard and only one.\n midsection of the circle chip at in a triangle is the production of the bisectors of the triangle.\n retention: in any beat described quadriceps opposite sides ar equal.\nSymptom: If the lend of the opposite sides of a convex quadrilateral are equal, wherefore(prenominal) it is possible to inscribe a circle.\nCircumcircle\n interpretation: if all the vertices of the polygon lie on a circle, the circle described well-nigh is called a polygon and polygon - inscribed in the circle.\nTheorem about any triangle send packing be described as a circle, and then only one.\n reduce of the circle special about the triangle is the intersection of the perpendicular.\nProperty: any cyclic quadrilateral philia of money of the opposite angles is one hundred eighty?.\nSymptom: if the sum of the opposite angles of a quadrilateral is clxxx , the near can describe a circle.