Hey guys, long time lurker, first time poster.
I did a little research and since maxis doesn't ever specifically mention a 'triangle', I looked for other shapes that could have 'scalene' versions, as well as obtuse vertices...
and I came across this: http://lmgtfy.com/?q=scalene+ellipsoid
Scalene Ellipsoid
Could it be that we need to think in 3D? With the top of the spire being the upper limit of the Ellipsoid, and four turbines down making the other 4 outer limits? Could the moon, which has been proven to be under the map, make up the last point? Interestingly enough, an Ellipsoid is in the shape of an egg.
I made a (very crude) mockup to explain what I'm saying:
Thoughts?