A plastic box 1. 5\ m long, 1. 25\ m ...

A plastic box `1. 5\ m` long, `1. 25\ m` wide and `65\ c m` deep is to be made. It is to be open at the top. Ignoring the thickness of the plastic sheet, determine: The area of the sheet required for making the box. The cost of sheet for it, if a sheet measuring `1\ m^2` cost `R s .20`

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