What's your angle? Rectangle or triangle?
As my truth of square drains you of your power the death angel

from RZA (Ft. Truth) – Tragedy Lyrics on Rap Genius

Meaning

he’s asking what side you’re on

this could possibly be religious: the rectangle is associated with the cross due to the number 4, which transitively associates it with Christianity

don’t think i’ll need to go into what the triangle menas…

the square is recognized as the symboly of equality, stability, and eternity. rza speaks the eternal truth, with words immortal enough to make the grim reaper weak

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