Question

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

Answer 1

Answer

Step-by-step explanation

Radius:140cm

1.4m

Height:1m

TSA:2πr(r+h)

2×22/7×1.4(1.4+1)

8.8(2.4)

21.12m^2

Answer 2

Hello mate ,

Your answer:-

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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

so , total 7.48 m^2 sheet is required.

I hope, this will help you.☺

Thank you______❤

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