the surface area of a sphere is 1386 cm^2 .Its volume is
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the surface area of a sphere is 1386 cm^2 .Its volume is
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4πr² =1386
4×22/7×r²=1386
r²=1386×7/22×4
r²=441/4
r=21/2=10.5 cm
Volume of sphere = 4/3πr³
=4/3×22/7×10.5×10.5×10.5
=237699 cm³
Answer:4851cu.cm
Step-by-step explanation:
surface area of sphere=1386 cm²
4πr² =1386
4×22/7×r²=1386
r²=1386×7/22×4
r²=441/4
r=21/2
volume of sphere=4/3×22/7×21/2×21/2×21/2
=33×147
=4851cu.cm