A cuboidal tank open at the top is made of an iron sheet 4 m wide. If the dimensions of the tank are 12 m × 8 m × 6 m, find the cost of an iron sheet required to make the tank at Rs. 17.50 per metre.
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the answer is 432m^2. the calculation is in the picture
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muskanrajbhandari:
I only need the cost of it
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