A solid metallic sphere of diameter 16 cm is melted and recasted into smaller solid cones each of radius 4cm and height 8cm.Find the no.of cones so formed.
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Answered by
90
Let the no. of cones be n
w.k.t
n = volume of sphere / volume of cones
n = 4/3πr³ /1/3πr²h
n = 4/3*22/7*8*8*8 / 1/3*22/7*4*4*8
n = 45056/21 / 2816/21
n = 45056/21 * 21/2816
n = 16
16 CONES ARE FORMED
Hope it helps
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w.k.t
n = volume of sphere / volume of cones
n = 4/3πr³ /1/3πr²h
n = 4/3*22/7*8*8*8 / 1/3*22/7*4*4*8
n = 45056/21 / 2816/21
n = 45056/21 * 21/2816
n = 16
16 CONES ARE FORMED
Hope it helps
THUMPS UP PLZ... :-)
Answered by
47
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