Question

One spherical concrete reservoir has its outer diameter equal to 4.6 m and the thickness
of its wall is 20 cm. Find the capacity of the reservoir in litres.​

Answer 1

Answer:

hlo

how.are you

have anice day

by

Answer 2

Given,

The outer diameter of the spherical reservoir(D)=4.6m

The outer radius of the reservoir (R) = D/2

= 4.6/2 m

= 2.3 m

The thickness of the wall is (t) = 20 cm = 0.2m

Then the inner radius of the spherical reservoir will be calculated as -

r = R - t

= 2.3 - 0.2 m

= 2.1 m

Then the capacity of the reservoir will be equal to it's volume and given as

Capacity = 4/3 π r^3

= 4/3 × 22/7 × (2.1)^3

= 4/3 × 22/7 × 21/10 × 21/10 × 21/10

= 38808 /1000

= 38.808 m^3

$we \: know \: that \: 1 {m}^{3} = 1000 \: l$Therefore, Capacity of the reservoir = 38.808 × 1000 = 38808