A1N1T1I1P3A1R1A1L1L1E1L1
14 points
ANTIPARALLEL is validvalid
[adj]
making with a transverse line an internal angle equal to the external angle made by another line [adj] / an antiparallel line [n -S]
[adj]
making with a transverse line an internal angle equal to the external angle made by another line [adj] / an antiparallel line [n -S]