Question

answer it correct.. ​

Answer 1

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Answer:

Here, h = 1 m, volume = 15.4 litres = 15.4/ 1000 m3 = 0.0154 m3 Also, volume of the cylinderical vessel = π r2h ⇒ 0.0154 = 22/ 7 × r2 × 1 ⇒ r2 = 0.0154 × 7/ 22 = 0.0049 ⇒ r = 0.07 m ∴ Total surface area of the cylinder = 2πr (h + r) = 2 × 22/ 7 × 0.07 (1 + 0.07) m2 = 44 × 0.01 × 1.07 m2 = 0.4708 m2 Hence, 0.4708 m2 of metal sheet would be needed Ans.Read more on Sarthaks.com - https://www.sarthaks.com/12182/capacity-closed-cylindrical-vessel-height-litres-square-metres-metal-sheet-would-needed

Answer 2

Answer:

Solution:

Height of cylindrical vessel, h = 1 m

Capacity of cylindrical vessel = 15.4 litres = 0.0154 m^3

Let r be the radius of the circular end.

Now,

Capacity of cylindrical vessel = (22/7)×r^2×1 = 0.0154

After simplifying, we get, r = 0.07 m

Again, total surface area of vessel = 2πr(r+h)

= 2×22/7×0.07(0.07+1)

= 0.44×1.07

= 0.4708

Total surface area of vessel is 0.4708 m^2

Therefore, 0.4708 m^2 of the metal sheet would be required to make the cylindrical vessel.

Step-by-step explanation:

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