Question

total surface area of a solid sphere is 1386sqm then what will be the total surface an
of the solid hemisphere of same sphere?​

Answer 1

Answer:

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Answer 2

Answer:

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: