Two plastic hemisphere are joined together to just cover a cylinder of height 8cm and radius 3cm find the radius of formed sphere
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hugged khud kuch itihaas ik
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ANSWER = 7.55cm
SEE
FORMULA OF HEMISPHERE IS 2/3PIE RCUBE AND FORMULA OF CYLINDER IS PIE× RSQUARE×H
SO KEEP BOTH IN EQUAL AND PUT VALUE
2×2/3PIE×R CUBE=PIE×9×8
RCUBE=9×8×3/4
R CUBE =54
Radius of sphere will be 3.77cm
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