A plastic box 1.5 m long 1 point 25 m wide and 6.5 CM deep is to be made it is opened at the top ignoring the thickness of the plastic sheet that reminds the area of the sheet required for making the box
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length (l) = 1.5m
breadth (b) = 1.25m
Height (h) = 65cm (convert 65cm to m) = 65/100 = 0.65m
area of sheet required = 2h (l+b) l x b
= 2 (0.65) x (1.5 + 1.25) x 1.5 x 1.25
= 1.30 x (2.75) x 1.875
= 3.575 x 1.875
= 5.45 m2
total cost sheet = 5.45 x 20
= Rs.10900
breadth (b) = 1.25m
Height (h) = 65cm (convert 65cm to m) = 65/100 = 0.65m
area of sheet required = 2h (l+b) l x b
= 2 (0.65) x (1.5 + 1.25) x 1.5 x 1.25
= 1.30 x (2.75) x 1.875
= 3.575 x 1.875
= 5.45 m2
total cost sheet = 5.45 x 20
= Rs.10900
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