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. A plastic box 1.5cm long 1.25m wide and 65cm deep is to be made. Findits area |
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Answer» Length of plastic box (l) = 1.5 cm= 0.015mWidth of plastic box (b) = 1.25 mDepth of plastic box (h) = 0.65 m(i) The area of sheet required to make the box is equal to the surface area of the box excluding the top.Surface area of the box = Lateral surface area + Area of the base = 2(l+b)×h+ (l×b) = 2[(0.015+ 1.25)×0.65]+ (0.015× 1.25)m2 2.5675The sheet required required to make the box is 2.5675m^2 |
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