please solve with full explanation
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143cm is the answer for the given question I think.
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Answer: 63 cm
Step-by-step explanation:
Radius of sphere = 21cm
therefore volume of sphere= π3/4×21×21×21
Let radius of rod be r cm
length of rod = 7cm
A.T.Q.
VOLUME OF SPHERE= VOLUME OF ROD
π3/4×21×21×21= πr²×7
r²= 9 ××441÷4
r= 3×21 / 2
r= 63/2
Therefore diameter of rod = 63×2/2
= 63cm
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