A blacksmith have big iron ball of diameter
36cm. He first formed four identical
cylindrical rod out of this ball for some
construction work. When he finished his
work with the cylindrical rod, he again
mixed all the iron rod and formed some
identical small balls, each of radius 9cm (i)
When one solid is converted to
another solid shape, their-
(i) Surface area remain same
(ii) Volume remain same
Which of the above options is/are true:
(a) Only (i)
(b) Only (ii)
(c) Both (i) and (ii)
(d) None of them.
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