An iron sphere of radius 5cm is melted and smaller spheres each of radius 2.5cm are made.how many smaller spheres are obtained
tanmayi9999:
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Answer:8
Step-by-step explanation:
Radius of big sphere = 5cm
Volume of big sphere = 4/3πr^3
Volume 1 = 4/3*22/7*5cm*5cm*5cm
Radius of small sphere = 2.5cm
Volume2 = 4/3*22/7*2.5cm*2.5cm*2.5cm
No of spheres = volume1/volume2
=4/3*22/7*5cm*5cm*5cm / 4/3*22/7*2.5cm*2.5cm*2.5cm
No of spheres =125cm^3/15.625cm^3
No.of spheres = 8
Nice answer with explaination
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