Question

total surface area of hemisphere is 462 find its diameter​

Answer 1

TSA of hemisphere =462cm²

diameter(d) =?

TSA of hemisphere = 3πr²

462 =3 ×22/7 ×r²

462×7/3×22 = r²

49 = r²

7cm = r

Therefore, the diameter of hemisphere =2(7)=14cm

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