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The square root of  0.`overline(4)`  is


Options:
A .  `0.overline(6)`
B .  `0.overline(7)`
C .  `0.overline(8)`
D .  `0.overline(9)`
Answer: Option A

`sqrt(0.overline(4))` = `sqrt(4/9)` =  `2/3` =   0.666............ = `0. overline(6)`




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