Question

a plastic box 1.5m long,1.25m wide and 65cm deep is to be made.it is opened at the top.ignoring the thickness of the plastic sheet,determine :​

Answer 1

Step-by-step explanation:

Length of box =1.5 m, Breadth =1.25 m, Height

=0.65 m

⇒Area to be white-washed = Area of cuboid − Area of base.

(i) Area of sheet requred =2lb+2bh+2lh−lb

(i) Area of sheet requred =2lh+2bh+lb .[Box is open]

==>>[2×1.5×0.65+2×1.25×0.65+1.5×1.25] m 2

==>>(1.95+1.625+1.875)m 2

=5.45 m 2

ii) Cost of sheet per m 2

area = Rs. 20

Cost of sheet of 5.45m 2

area = Rs. 5.45×20

= Rs. 109

HOPE THIS HELPS YOU ❕☺️

Answer 2

Answer:

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