Final answer:
The conditional statement is: If two lines are perpendicular, then they intersect at right angles. The converse is: If two lines intersect at right angles, then they are perpendicular.
Step-by-step explanation:
The conditional statement for the given biconditional is:
If two lines are perpendicular, then they intersect at right angles.
The converse of the given biconditional is:
If two lines intersect at right angles, then they are perpendicular.