the surface of sphere is r cm. it is divided into 2 equal parts. find the whole surface of two parts.
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TSA of hemisphere = 3πr2
Radius =half of sphere i.e r/2
TSA=3*22/7*r/2*r/2
=33r2/14
Thus 2 *33r2/14 is the total sales of the two parts
=33r2/7 is the answer
Hope it's correct if wrong inform me I am sry for it
Radius =half of sphere i.e r/2
TSA=3*22/7*r/2*r/2
=33r2/14
Thus 2 *33r2/14 is the total sales of the two parts
=33r2/7 is the answer
Hope it's correct if wrong inform me I am sry for it
Answered by
1
R=r
if sphere is divided into two equal parts then its hemisphere with radius =r
TSA of hemisphere=3
r square units
TSA of both parts 2×3r square units =6r square units
Hence,the whole surface area of two parts is 6r square units
if sphere is divided into two equal parts then its hemisphere with radius =r
TSA of hemisphere=3
TSA of both parts 2×3
Hence,the whole surface area of two parts is 6
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