90degree angle would be a right angle just to refresh -- that is when 2 lines intersect perpendicular at their end points.
think of madonnas cone bra -- that might not illustrate what i am trying to explain but think of it anyway...
alright -- an L forms a right angle -- weather or not it is right side up or upside down -- so make an L with your arms -- yes, yes go ahead --- umm a bit more -- there you have it. Now pump frantically like Shaq is about to run into you and you are trying to get away. Ok JR maybe I can excuse you from this excercise (sp?).
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