3. A family of planes consists of equivalent planes so far as the atom arrangement is concerned 10}=(110)+(110)+(101)+ (101)+(011)+(01 Total: 6 111=(111)+(111)+(111)+ Total: 43. A family of planes consists of equivalent planes so far as the atom arrangement is concerned. (101) (011) (011) {110} (110) (110) (101) + + = + + + Total: 6 (111) {111} = (111) + (111) + (111) + Total: 4