Question

←→ is parallel to CD←→. AC¯¯¯¯¯ and BD¯¯¯¯¯ are perpendicular to AB←→ and CD←→ . What is the relationship between AC¯¯¯¯¯ and BD¯¯¯¯¯ ?

Answer 1

AB=CD

"When two lines are parallel, the perpendicular distance between the two lines is the same throughout."

Answer 2

If AC and BD are perpendicular to AB and CD which are parallel. It means they face the same direction and are parallel to one another.