total surface area of a solid sphere is 1386sqm then what will be the total surface an
of the solid hemisphere of same sphere?
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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=10.5 cm
tsa of hemispere =2πr²
=2×22/7×10.5×10.5
=693
Step-by-step explanation:
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