Question

1. A closed cylindrical tank of height 1.4 m. and radius of the base is 56 cm.
is made up of a thick metal sheet. How much metal sheet is required (Express
in square meters)​

Answer 1

Step-by-step explanation:

TSA of cylinder =2πr(r+h)

r=56 cm

h=1.4 m=140cm

TSA=2*22/7*56(56+140m)

=44*8(196)

=68,992 cm^2

in m =6.8992m^2

So,metal sheet required is 6.8992m ^2