Yes.
left brain
Pythagorus
right
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.
The hypotenuse is the side opposite to the right angle in the triangle.
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.
Ask a philosopher - bottom line is that a legal duty is imposed by a government while moral duty is based upon one's own definition of what is right
They're dating right now, its nothing serious
Pythagoras
They total 90o
Their are Perpendicular.