Question

how much metal sheet is needed to cover rectangular boo of l =1-5m b =1.2 h=1.3m​

Answer 1

Total Surface Area Of Cuboid=2(lb+bh+hl)

2(1.5x1.2+1.2x1.3+1.3x1.5)

10.6 m2

Therefore, 10.6m2 metal sheet is needed to cover rectangular book.