How do the spacings of the three planes (010), (110) and (111) of fcc lattice vary?

How do the spacings of the three planes (010), (110) and (111) of fcc

1.	How do the spacings of the three planes (010), (110) and (111) of fcc lattice vary?
Answer» SOLUTION :`1//2 : 1 //2 SQRT2 : 1 // SQRT3`