Question

a box measuring 60 CM by 40 cm by 20 cm is to be covered with cloth how many square centimetre of force is required for this purpose find the cost of cloth at rupees 80 per metre square.​

Answer 1

Step-by-step explanation:

let lenght be l

breath be b

height be h

so,we find total surface area of cuboid

TSA =2(LB+BH+HL)

=2(60×40+40×20+20×60)

=2(2400+800+1200)

=2(4400)

=8800cm^2

we change cm to meter

cost of 1 meter square is 80

the. 88 meter square=80×88

=rs 7040

Answer 2

Step-by-step explanation:

Length - 60cm

Breath - 40cm

Hieght - 20cm

we find total surface of area

2(lb+bh+lh)

2(60*40+40*20+60*20)

2(2400+800+1200)

2*4400

8800cm²

we convert cm to m

cost of cloth 80*88

Rs 7040

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