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Hardik Gandhi

· started a discussion

· 1 Months ago

question: 293473 (Question: 293473.0 )

surface area of two peices will be 3pi* r^2 + 3pi*sqrt(r^2- h^2) .. hence after solving h= r/sqrt(3).

please check the answer and revert back.

Question:

A sphere of radius r is cut by a plane at a distane of h from its centre, thereby breaking this sphere into two different pieces. The cumulative surface area of these two pieces is 25% more than that of the sphere. What is the value of h ?

Options:
A)

r2    

B)

r2    

C)

r3    

D)

r3    

Solution:

Ans: (a)

  

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