Question

A wire with diameter 1cm is prepared by melting a sphere of radius 6 cm . what will be the length of the wire?
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Answer 1

vol of sphere = 4÷3πr3

r = 6 cm

4÷3×22÷7×6×6×6=

847.8cm 3

Answer 2

we find the volume ...
sphere volume= 4/3πr³
=4/3×22/7×6×6×6
=4×22/7×2×36
=905.14 cm³

volume of the wire= πr²h
905.14=22/7×0.5×0.5×h
905.14=22/7×0.25×h
905.14=0.78×h
905.14/0.78=h
h = 706.0092 cm

h is the length of the wire

hope it helps...
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