Math, asked by mkmkmkmkmkmk, 1 year ago

the volume of a hemisphere is 2425/2 cm^3 find its CSA ?


Answers

Answered by himanshi7593
4
Here is your answer buddy,

(Given) Volume of the hemisphere = 2425 1/2

therefore,

2/3 πr^3 = 2425 1/2
=> 2/3 πr^3 = 4851/2
=>r^3 = 4851×3×7/2×2×22
=> r^3 = 441×21/2×2×2
=> r^3 = 21×21×21/2×2×2
=> r^3 = (21/2)^3
=> r = 21/2

Now the CSA = 2πr^2
= 2×22×21×21/7×2×2
= 693 cm^3

Hope this helps you



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