Question

If surface area of sphere is equal to curved surface area of Hemisphere,
then radius of sphere is equal to two times of radius of hemisphere,
Are you agree ? Explain ?
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Answer 1

Answer :-

No I'm not agree.

~Let

Radius of hemisphere = r units.

Radius of the sphere = R unit

It's given that

Surface area of sphere = Surface area of hemisphere

» 4π(R)² = 2πr²

» 2R² = r²

» (√2R)² = r²

» √2R = r

•°• R ≠ 2r

Radius of sphere ≠ two times of radius of hemisphere.

Answer 2

Answer:

hope it is helpful to you.