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CBSE Class 9 Answered

The capacity of a closed cylindrical vessel of height 1 m is 15.4 litres. How many square meters of metal sheet would be needed to make it? .
Asked by Topperlearning User | 04 Jun, 2014, 01:23: PM
answered-by-expert Expert Answer

Height of the vessel = 1 m

Capacity of the vessel = 15.4 litres

.

Volume of the cylindrical vessel = r2h.

r2h = 0.0154

r = 0.07 m

Metal sheet needed to make the cylindrical vessel.

= Total surface area of the cylindrical vessel.

= 2r(r + h)

= 0.4708 m2

Therefore, 0.4708 m2 of sheet will be required to make the vessel.

Answered by | 04 Jun, 2014, 03:23: PM

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