Set with pair of boards, flat geometry

Função

Intended for experimental study, mathematics laboratory and carrying out mathematical experiments on: Mathematics. Plane and metric geometry. How to obtain polygonal lines, quadrilateral and trilateral polygons and their perimeters. The polygonal line. The quadrilateral polygon, rectangle. The quadrilateral polygon, square. The trilateral polygon, triangle. Congruence. The right triangle. The quadrilateral polygon, parallelogram. The quadrilateral polygon, trapezoid. The quadrilateral polygon, rhombus. The perimeter. The diagonals of the polygon. Regular polygons, inscribed polygons. Regular polygons inscribed in a circle. The regular trilateral polygon, equilateral triangle. The geometric center of the regular polygon inscribed in a circle. The apothem of a regular polygon. The regular trilateral polygon, equilateral triangle. How to get areas of rectangle, square and triangle polygons? Area of quadrilateral polygon, rectangle. Area of quadrilateral polygon, square. Area of trilateral polygon, triangle. How to get areas of quadrilateral and trilateral polygons? Area of quadrilateral polygon, parallelogram. Area of quadrilateral polygon, trapezoid. Area of quadrilateral polygon, rhombus, etc.