what is the purpose area of a sphere formed by joining four identical solid quarter is there if the surface area of each one of them is 32 CM square?
a 32 CM square
b 64 CM square
c 80 CM square
d 128 CM square
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Total surface area of 4 such quarter = 4 * (2πr²) = 4 * 32 = 128 cm² . (Option D) (Ans.) Hence, the surface area of a sphere formed by joining. Hence, the surface area of a sphere formed by joining
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