Step-by-step explanation:
2 PAIRS OF PARALLEL LINES
•LINE AB is parallel to LINE CD
•LINE AC is parallel to LINE BD
PAIR OF INTERESTING LINES
• LINE AD is intersecting to LINE CB
• LINE DA is intersecting to LINE BD
PAIR OF PERPENDICULAR LINES
• LINE AB is perpendicular to LINE AC
• LINE AB is perpendicular to LINE BD
• LINE AC is perpendicular to LINE CD
• LINE CD is perpendicular to LINE BD
