Math, asked by anjalibolla20, 4 months ago

A plastic box 1.5 m long, 1.25 m wide and 65 cm deep is to be made. It is opened at the top. Ignoring the thickness of the plastic sheet, determine
(i) The are of the sheet required for making the box.
(ii) The cost of sheet for it, if a sheet measuring 1 m² costs ₹20.

Answers

Answered by mishravijay0117
5

Answer:

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Step-by-step explanation:

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Answered by farhaanaarif84
4

Answer:

Given:

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

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