|Innocent acute triangle or instrument of ninja death? You decide.|
Acute in this sense means short. Each of the angles, when measured, are the angle equivalent of Gary Coleman. Strangely enough, if you go absolutely batsh*t crazy for a short while and only need a short stint in an asylum for batsh*t crazy people, the stint in the asylum is called acute psychological care. Once again, in this case, acute means short, like Gary Coleman.