504 Cones each of diameter 3.5 cm and height 3 cm are melted and recast to metallic sphere. Find diameter of sphere and surface area?
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Step-by-step explanation:
r=3.5 h=3
volume of each cone=1/2 *22/7* r^2*h
volume of each conbe =385cm^3
volume of all cone=385*504=194040cm^3
volume of new object= volume of old object
194040=4/322/7*R^3
R^3=61740*3/4=46305
taking cube root
R=aproximately 36cm
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