the radius of sphere is r cm. it is divided into 2 equal parts. find the whole surface area of the 2 parts
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the radius of sphere is r cm. it is divided into 2 equal parts. find the whole surface area of the 2 parts
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Answer:
So it is divided into two equal hemisphere
Step-by-step explanation:
Whole surface area of two equal hemisphere = 2×(3πr²)
= 2×(3×22/7 ×r²)
=132/7 r²
= 18.85r² cm²