a plastic box 1.5m long, 1.25m wide, 65cm deep is to be made . it is to be open the top. ignoring the thickness of the plastic sheet, determine
(i) the area of the sheet required for making the box
(ii) the cost of sheet for it,if a sheet measuring 1m^2cost Rs 20.
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The area of the sheet required for making the box is 5.45 meter square.
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