Feb 20, 2018
Coiled
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Coiled
ART PARIS : Eric Baudart : ConCav or, Lionel Moura, Michel Pagsat : Ecorobotic studio, Muriel Persil : le Royaume de l’anemone, Bachelot et Caron : Soutine, le boeuf écorché, Lionel Moura, Cesar : le Gari, Pierre Alechinsky : Et mon bureau ? Roberto Matta : Luci d’Altrove, Andy Warhol : Gerard Depardieu. #artparis #artparisartfair #grandpalaiséphémère #ericbaudart #concav #or #galeriechristophegaillard #lionelmoura #michelpaysant #ecoroboticstudio #murielpersil #royaume #anemone #bachelotcaron #schoolgallery #soutine #boeufécorché #fondationguyandmyriamullens #cesar #legari #galeriedesmodernes #pierrealechinsky #etmonbureau #robertomatta #luci #altrove #andywarhol #gerarddepardieu #instapic #photooftheday (à Art Paris) https://www.instagram.com/p/CcTPy6arUwe/?igshid=NGJjMDIxMWI=
Ipoteza Pământului gol concav on Nicolae Sfetcu
New Post has been published on http://www.sfetcu.com/ipoteza-pamantului-gol-concav/
Ipoteza Pământului gol concav
(Un exemplu de Pământ gol concav. Oamenii trăiesc pe interior, cu universul în centru.) În loc să afirme că oamenii trăiesc pe suprafața exterioară a unei planete goale – uneori numit ipoteza Pământului gol “convex” – unii pseudo-oameni de ştiinţă pretind că trăim pe supra...
Ipoteza Pământului gol concav on Nicolae Sfetcu
New Post has been published on http://www.sfetcu.com/ipoteza-pamantului-gol-concav/
Ipoteza Pământului gol concav
(Un exemplu de Pământ gol concav. Oamenii trăiesc pe interior, cu universul în centru.) În loc să afirme că oamenii trăiesc pe suprafața exterioară a unei planete goale – uneori numit ipoteza Pământului gol “convex” – unii pseudo-oameni de ştiinţă pretind că trăim pe supra...
Quadrilaterals!!
What is a quadrilateral you say? Well a quadrilateral is a four sided colsed figure whose four angles add up to 360 degrees. Like this
To solve for A here you would add 60+70+135= 265. Then since a quadrilaterals angles add up 360, subtract 265 from 360= 90!
Quadrilaterals can be convex, which is a polygon with all its interior angles less than 180° like this:
Diagonals, (A line segment drawn from one vertex of a quadrilateral to the opposite vertex),in a Convex quadrilateral intersect, within the quadrilateral.
Or Concave, a polygon with one or more interior angles greater than 180° like this:
Concave quadrilaterals diagonals are outside of the quadrialteral or reflex angles.
This is what they convex and concave look like with diagonals:
A diagonal also connects the non-consecutive, or the angles that don't form a side.
Thats all you need to know!
Bib:
http://image.tutorvista.com/Qimages/QD/18438.gif
"Concave Polygon Definition - Math Open Reference." Table of Contents - Math Open Reference. Web. 14 Feb. 2011. http://www.mathopenref.com/polygonconcave.html.
http://www.tutornext.com/system/files/u27/cq4.JPG
http://www.tutornext.com/system/files/u26/Quad02.gif
"Convex Polygon Definition - Math Open Reference." Table of Contents - Math Open Reference. Web. 14 Feb. 2011. <http://www.mathopenref.com/polygonconvex.html>.
http://www.tutornext.com/system/files/u26/Arrowhead.png
"Quadrilaterals." Interactive Maths Series Software (interactive Mathematics Software or Math Software). Web. 14 Feb. 2011. http://www.mathsteacher.com.au/year8/ch09_geometry/07_quad/quad.htm#quad
http://www.btb.gc.ca/images/scolaire-school/fig11.png