Equivalence material

The equivalence material has two functions: one sensory, transforming one figure into another; the other, finding relationships between the measurements of equivalent figures.
In addition, this material allows the transformation of non-measurable figures into measurable ones. Equivalence of the triangle with a rectangle having one side equal to its base and the other equal to half its height. Equivalence of the triangle with a rectangle having one side equal to half its base and the other equal to half its height. Equivalence of the right-angled triangle with a rectangle having one side equal to half its base and the other equal to half its height. Equivalence of the parallelogram with a rectangle having one side equal to its base and the other equal to its height. Equivalence between the rhombus and a rectangle having one side equal to that of the rhombus and the other equal to the height of the rhombus. Equivalence between the trapezium and a rectangle that has one side equal to the sum of its two bases and the other equal to half its height. Equivalence between a trapezoid and a rectangle that has one side equal to half the sum of the two bases and the other equal to half the height. Equivalence between a regular polygon and a rectangle having one side equal to half the perimeter and the other equal to the apothem. Equivalence between a regular polygon and a rectangle with one side equal to the perimeter and the other equal to half the apothem.