Question

make a box which is 1.5 m long 1.2 m width 80 cm high and is open at the top ​

Answer 1

Answer:

l = 1.5m = 150cm

b = 1.2m = 120cm

h = 80cm

CSA = 2h(l+b)

CSA = 2(80)(150+120)

CSA = 160(270)

CSA = 43200cm^2

CSA = 4.32m^2

TSA = 2(lb + bh + lh)

TSA = 2([150×120]+[120×80]+[150×80])

TSA = 2(18000+9600+12000)

TSA = 2(39600)

TSA = 79200cm^2

TSA = 7.92m^2

Volume = l×b×h

Volume = 150×120×80

Volume = 1440000cm^2

Volume = 144m^2

$Thus \: for \: the \: given \: cuboid, \\ </p><p>CSA = 4.32 {m}^{2} \\ </p><p>TSA = 7.92 {m}^{2} \\ </p><p>Volume =144 {m}^{2}$