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0. A class VII teacher wants to discuss the following problem in the class,"A square is divided into four congruent rectangles. The perimeter of each rectangle is 40 units. What is the perimeter of given square?"Key mathematical concepts required to solve this problem is
Area of square and rectangle, perimeter of square and rectangle and definition of square and rectangle.
Meaning of the terms square, rectangle, congruent, perimeter etc.
Area of rectangle, perimeter of square.
Formation of algebraic equation to solve the problem.
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