Counting (number of pairs of perpendicular and parallel lines) ( combinatorics)

For each of the figures below, find the number of:
(a) parallel lines (including line segments) 

(b) perpendicular lines (including line segments) 

> For each of the figures below, find the number of
> (a) parallel lines (including line segments)
> (b) perpendicular lines (including line segments)
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