What is the graph or plot called which: - is an equilateral triangle - has three axes - each axes is perpendicular to a side of the triangle? [more inside]
posted by Peter Petridish on Oct 28, 2009 - 10 answers

can you help me compute the area of a triangle on the sphere? [more inside]
posted by klanawa on Feb 4, 2009 - 20 answers

Are equilateral triangles also isosceles? [more inside]
posted by i_am_joe's_spleen on Mar 3, 2005 - 25 answers

Given the latitude and longitude of three points, how can I find the coordinates of the point that is equidistant from them? [mi] [more inside]
posted by obiwanwasabi on Feb 6, 2005 - 21 answers