A.+0.25DC*90/-0.25DC*90 B.+0.25DS/-0.25DC*90 C.+0.25DC*90/-0.25DS*90 D.+0.25DS/-.050DC*90
A.30° B.60° C.90° D.180°
A.+1.00DS/+0.75DS*45 B.+1.00DS/0.75DC*135 C.-0.50DS/0.75DC*45 D.-0.50DS/0.75DC*135