Tweet de Steve Phelps (@giohio)

Steve Phelps (@giohio) twitteó a las 8:16 a. m. on dom, dic 09, 2018:
A @geogebra #3D animation showing why the sum of the interior angles of a triangle on the surface of a sphere is greater than pi.
https://t.co/MDkYHwCf1D
#mtbos #iteachmath @ohioctm @swoctm1 https://t.co/Umt6OEuRde
(https://twitter.com/giohio/status/1071748002749038597?s=03)

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