A) \[1.27\,{AA}\]
B) \[5.08\,{AA}\]
C) \[2.54\,{AA}\]
D) \[3.59\,{AA}\]
Correct Answer: D
Solution :
\[\sqrt{2}\,a=4r\]Þ \[a=\frac{4r}{\sqrt{2}}=\sqrt{2}(2r)=\sqrt{2}\times 2.54=3.59\,{AA}\]
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