box of dimensions 2 metre into 1.25 metre into 85 cm is to be made determine the area of the sheet required when the box is open at the top
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In a cuboidal shape box
dimensions are L= 2m,B= 1.25m,H= 85cm
converting all values in cm
=> so L = 200cm,B= 125cm,H = 85cm
=> surface area of cuboidal = 2(LB+BH)+HL
=> 2[200×125+125×85]+ 85×200
=> 2[ 25000+10625] + 17000
=> 71250+ 17000
=> 88250cm^2 sheet required
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