◆‖.P| ane indices 1. Steps to determinate the plane indices O Establish a set of coordinate axes 2 Find the intercepts of the planes to be indexed on a, b and c axes (r,y,=) b1. Steps to determinate the plane indices:  Establish a set of coordinate axes  Find the intercepts of the planes to be indexed on a, b and c axes (x, y, z). a c b x y z ◆Ⅱ. Plane indices