Scale and move lines

I want to offset triangles in z-axis and scale them to create frustum, for every triangle a frustum to create pattern, unable to organise lines nearest to (9.2 KB)

That’s nice but what has your attached file got to do with this task?

i want to know how to proceed here on after, just how to select a triangle formed from the intersection of lines, how to basically arrange data to create a branch of three lines for all the lines.