two hemisphere of radii 2 cm and 4 cm are melted and recast into a cone of radius 4 cm. then find the height of the cone.
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Answer:
Step-by-step explanation:
2/3*22/7[(4)^3-(2)^3]=1/3*22/7*16*h
2/3*56=1/3*16h
112/3=16h/3
h=7cm.
swarnapraveen:
with formula please
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