Experiment with several such shapes and cut-outs. You might find it useful to draw these shapes on squared sheets and compute their areas and perimeters.
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Step-by-step explanation:
Important Formulas relating to Area and perimeter of rectangle and square
Area of Rectangle = Length × Breadth
Length = Area of Rectangle/Breadth
Breadth = Area of Rectangle/ Length
Area of Square = Side2
Side = √Area of squareArea of square
Perimeter of Rectangle = 2 (Length + Breadth)
Length = Perimeter of Rectangle2−BreadthPerimeter of Rectangle2-Breadth
Breadth = Perimeter of Rectangle2−LengthPerimeter of Rectangle2-Length
Perimeter of Square = 4 × side
Side = Perimeter of square4
hope this help
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