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Little explorations with HP calculators (no Prime)
03-29-2017, 11:49 AM (This post was last modified: 03-29-2017 11:50 AM by pier4r.)
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RE: Little explorations with the HP calculators
(03-29-2017 11:31 AM)Han Wrote:  Have you considered the sum of the angles in a triangle and a quadrilateral, and properties of vertical angles?

Yes I considered the angles in a triangle (180) and quadrilateral (360), I considered that an angle is the same when opposite or the complementary that have a sum of 180. Unless I missed some internal shape, I got all the possibilities of which I'm aware of.

What I did see after your question is the concave pentagon. And maybe this will help.

Wikis are great, Contribute :)
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RE: Little explorations with the HP calculators - pier4r - 03-29-2017 11:49 AM



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