Question

The capacity of a closed cylindrical vessel of height 1 m is 15.4 litres. How many square metres of metal sheet would be needed to make it?​

Answer 1

Answer:

Step-by-step explanation:

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.

Answer 2

Answer:

Height of the vessel=1m

Capacity of the vessel=15.4 liters

=

1000

15.4

m

3

=0.0154m

3

Volume of the cylindrical vessel=πr

2

h=0.0154