THE LABWORLD Variable Quadrilateral Polygon Mathematics kit Working Model for lab to demonstrate The Properties of a Quadrilateral to Students and Teachers Ruler  (Set of 1, Multicolor)

Variable Quadrilateral Polygon Math kit Working Model for lab to demonstrate The Properties of a Quadrilateral to Students and Teachers.Math working model with four protactors at corners to measure and demonstrate the sum of angles of quadrilateral is 360 degrees.it is a must have teaching aid for teachers and schools in math lab for understanding of students about quadrilateral and mensuration.It is a first of its kind creative and innovative math model which can show practically how parallelogram can be formed with this model with opposite angles equal .In this model you can easily change the angles and find the sum of angles will be same.Made up of good grade plastic material ,size approx 20-22 cm to 25 cms for mensuration.Good grade clear markings of angles in degrees with precision.Safe packing