Let us recall that :
- each pair of [ opposite edges ] within the rhombus are parallel .
Accordingly , let us now identify 6 sets of [ 10 parallel Edges ] within the [ 30-Rhombus S-S-O ] as follows :
- First set [ Set A ] as marked-off in [ red-color ] :

- 2nd set [ Set B ] as marked-off in [ magenta-color ] :

- 3rd set [ Set C ] as marked-off in [ blue-color ] :

- 4th set [ Set D ] as marked-off in [ brown-color ] :

- 5th set [ Set E ] as marked-off in [ light-green-color ] :

- 6th set [ Set F ] as marked-off in [ cyan-color ] :
