Spherical Trigonometry for Dummies: Proving we live on a flat earth

N.-Y.: CreateSpace Independent Publishing Platform , 2015. - 26p.Spherical Trigonometry for Dummies proves we live on a flat earth. Spherical Trigonometry is the study of curved triangles, triangles drawn on the surface of a sphere. The subject is practical, for example, because we don’t live on a sphere. The subject has numerous elegant and unexpected theorems. I give a few below.