A box of length 80 cm, breadth 60 cm and height 45 cm is to be made of plastic. what is the area of the plastic sheet required if the box al

Question

A box of length 80 cm, breadth 60 cm and height 45 cm is to be made of plastic. what is the area of the plastic sheet required if the box also has a lid.​

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Iris 2 months 2021-10-09T18:17:04+00:00 2 Answers 0 views 0

Answers ( )

    0
    2021-10-09T18:18:04+00:00

    Step-by-step explanation:

    length L = 80 CM ;breadth, b = 60 cm and height, H =45 CM

    Total surface area = 2(lb + bh + hl)

    = 2 { (80 × 60) + (60× 45) + (45 × 80)} cm²

    = 2(4800 + 2700 + 3600) cm²

    = 2(11100)cm² = 22200cm² = 2.2m²

    0
    2021-10-09T18:19:02+00:00

    Step-by-step explanation:

    area of cuboid is 2(lb+bh+lh)

    here l=80cm,b=60cm,h=45cm

    therefore,

    area of plastic used =2(80*60+60*45+45*80)

    =2(4800+2700+3600)

    =2(11100)

    =22200cm^2

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