Question

Find the no of solid sphere of diameter 6 cm can be made by melting a solid meallic cyclinder of height 45 cm and diameter 4 cm

Answer 1

Answer:

for sphere,

r=3cm

v. o. s=4/3*pie*r*r*r

=36*pie

for cylinder,

r=2cm

h=45cm

v. o. c=pie*r*r*h

=180*pie

no. of. solid sphere =volume of cylinder /volume of sphere

=180*pie/36*pie

=5

therefore, 5 sphere can be made