How do the spacings of the three planes (001), (011) and (111) of bcc lattice vary ?

How do the spacings of the three planes (001), (011) and (111) of bcc

1.	How do the spacings of the three planes (001), (011) and (111) of bcc lattice vary ?
Answer» SOLUTION :`1//2 : 1// SQRT2 :1 //2 SQRT3`