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If the extremities of the diagonal fo a square are (1,-2,3) and (2,-3,5), then the length of the side is `sqrt(6)` b. `sqrt(3)` c. `sqrt(5)` d. `sqrt(7)`

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Length of the diagonal
`sqrt[(2-1)^2+(-3+2)^2+(5-3)^2]`
`=sqrt(1+1+4)`
`=sqrt6`
...
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