Yes.
left brain
A mandatory relationship is when you HAVE to do it. Kind of like when people are "arranged". An optional relationship is where you have the right to chose.
Pythagorus
right
The hypotenuse is the side opposite to the right angle in the triangle.
Yes It is
In most countries only the citizens have the right to vote, foreigners are excluded.
Every right to be beautiful inside. Every right to tell you how gorgeous you are. Every right to listen to you. The right to love, the right to be good kissers, the right to RESPECT YOUR MORALS.
Their are Perpendicular.
Treat the labor right and don't be a jerk.
Pythagoras
They're dating right now, its nothing serious