A) r = 0.414K
B) R = 0.414r
C) r = 2R
D) \[r=\sqrt{2}R\]
Correct Answer: A
Solution :
\[{{(2R)}^{2}}={{(R+r)}^{2}}+{{(R+r)}^{2}}\] \[\sqrt{2}R=R+r\] \[(\sqrt{2}-1)R=r\] 0.414 R = rYou need to login to perform this action.
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