Question

A closed cylindrical tank of radius 7 m and height 3 m is made from a sheet
of metal. How much sheet of metal is required?​

Answer 1

Answer:

All the best!

Hope it helps!

Answer 2

Given, r = 7 m and h = 3 m.

Sheet required to make a closed cylinder= Total surface area of the cylinder

2$\pi$r (r+h) sq. units

2 * 22/7 *7 (7+3)

2 * 22 * 10

440 m²

So, the required metal sheet=