Colombian Graffiti / Trigonometry Leave a reply Graffiti, Getsemani, Cartagena, Colombia. Trigonometry I had a dream last night about trigonometry sines, cosines, angles my mind going off at a tangent maybe it was that email out of the blue from Leo Mangan, an old school friend. Rate this:Share this: Click to share on X (Opens in new window) X Click to share on Facebook (Opens in new window) Facebook Like Loading... Related