solid sphere of radius 3 cm is melted and then cut into smaller spherical ball each of diameter 0.6 cm find the number of small ball thus obtained
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10 small ball obtained
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Heya !!
Radius of sphere ( r ) = 3 cm
Volume of sphere = 4/3 πR³
=> 4/3 × 22/7 × 3 × 3 × 3
=> ( 4 × 22 × 9 ) / 7
=> 792/7 cm³
Radius of small spherical ball => 0.6 cm
Volume = 4/3 × πR³
=> 4/3 × 22/7 × 0.6 × 0.6 × 0.6
=> ( 4 × 22 × 0.072) / 7
=> 6.336/7 cm³.
Number of small spherical balls formed = Volume of sphere / Volume of each small spherical balls = 792/7 / 6.336/7
=> 125 balls.
Radius of sphere ( r ) = 3 cm
Volume of sphere = 4/3 πR³
=> 4/3 × 22/7 × 3 × 3 × 3
=> ( 4 × 22 × 9 ) / 7
=> 792/7 cm³
Radius of small spherical ball => 0.6 cm
Volume = 4/3 × πR³
=> 4/3 × 22/7 × 0.6 × 0.6 × 0.6
=> ( 4 × 22 × 0.072) / 7
=> 6.336/7 cm³.
Number of small spherical balls formed = Volume of sphere / Volume of each small spherical balls = 792/7 / 6.336/7
=> 125 balls.
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