Question

it is required to make a closed cylindrical tank of height 1 m and base diameter 140 cm from a metal sheet how many square metres of the sheet are required for the same

Answer 1

Hello mate ,

Your answer:-

__________________________

Height of closed cylindrical tank ,h=1 m

Base diameter of cylindrical tank =d=140 cm 

=140/100

=1.4 m

⇒ Radius of cylindrical tank ,r

=d/2

=1.4/2

=0.7 m

Total surface area of cylindrical tank 

=2πr(r+h)=2×22/7×0.7(0.7+1)

=2×22/7×0.7×1.7

=7.48 m^2

I hope, this will help you.☺

Thank you______❤

__________________________❤

Answer 2

hope it's help u..............