Question

1 . A hemispherical tank is made up of an iron sheet 1 cm thick . If the inner radius is 1 m then find the volume of the iron used to make the tank .
answer me please now .

Answer 1

hey mate
here's the solution

Answer 2

⇒ Answer :- 0.063487 cm^3

⇒ Given :-

Inner radius = 1 m

Iron sheet is 1 cm Thick

⇒ Solution :-

Let outer radius be R = Inner radius + thickness of iron sheet

= 101 cm

Inner radius be r = 1m = 100 cm

∴ Volume of the iron = (⅔)×(22/7)× (R^3-r^3)

(2/3)×(22/7)×(101^3-100^3)

44/21×30301 cm^3

63487.80952 cm^3

0.063487 cm^3