A shopkeeper has one sperical ladoo of radius 5 centimetre the same amount of material how many ladoos of radius 2.5 can be made
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IN THE FIRST CASE (r=5cm):
π*r2 = π*5*5
=25π cm2
IN THE SECOND CASE (r=2.5cm):
π*r2 = π*2.5*2.5
= 6.2525π cm2
HENCE ,
=25π/6.2525π
=4
Therefore 4 laddos can be made .....
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