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In computational geometry, a fan triangulation is a simple way to triangulate a polygon by choosing a vertex and drawing edges to all of the other vertices of the polygon. Not every polygon can be triangulated this way, so this method is usually only used for convex polygons .
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Handheld Brise fan from 1800. A handheld fan, or simply hand fan, is a broad, flat surface that is waved back-and-forth to create an airflow. Generally, purpose-made handheld fans are folding fans, which are shaped like a sector of a circle and made of a thin material (such as paper or feathers) mounted on slats which revolve around a pivot so that it can be closed when not in use.
Geometric Origami is a book on the mathematics of paper folding, focusing on the ability to simulate and extend classical straightedge and compass constructions using origami. It was written by Austrian mathematician Robert Geretschläger [ de ] and published by Arbelos Publishing (Shipley, UK) in 2008.
Infobox for polygons, for example, triangles and squares. Template parameters [Edit template data] This template has custom formatting. Parameter Description Type Status Name of shape name no description Example Square String required Image of shape image no description File suggested Image caption caption no description Content optional Type type General type of this shape Content optional ...
Lucky for you, there's a surprisingly simple way to help with this nerve-racking task. Check out the video above to see how host Kari Byron uses a tube of toothpaste to simplify hanging art at home.
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One can use the polygon/star tool (make sure that it's set to "polygon", checkbox at top, and that it's set to 6 corners). Hold down "ctrl" while drawing the first hexagon to get the angles straight. If you only want the hexagon for aliphatic backbones, you can now convert the hexagon to a path (Path -> Object to path) so that you can ...