Refer to Design B |
(iv) The difference of areas of golden and silver parts is |
A) \[18\pi \,m{{m}^{2}}\]
B) \[44\pi \,m{{m}^{2}}\]
C) \[51\pi \,m{{m}^{2}}\]
D) \[64\pi \,m{{m}^{2}}\]
Correct Answer: C
Solution :
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