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  2. Hendecagram - Wikipedia

    en.wikipedia.org/wiki/Hendecagram

    In geometry, a hendecagram (also endecagram or endekagram) is a star polygon that has eleven vertices. The name hendecagram combines a Greek numeral prefix, hendeca-, with the Greek suffix -gram. The hendeca-prefix derives from Greek ἕνδεκα (ἕν + δέκα, one + ten) meaning "eleven".

  3. List of symbolic stars - Wikipedia

    en.wikipedia.org/wiki/List_of_symbolic_stars

    Hendecagram, an eleven-pointed star polygon; Dodecagram, a twelve-pointed star polygon; Magic star, a star polygon in which numbers can be placed at each of the vertices and intersections, such that the four numbers on each line sum to the same "magic" constant

  4. Hendecagon - Wikipedia

    en.wikipedia.org/wiki/Hendecagon

    A regular hendecagon is represented by Schläfli symbol {11}.. A regular hendecagon has internal angles of 147. 27 degrees (=147 degrees). [5] The area of a regular hendecagon with side length a is given by [2]

  5. List of educational video websites - Wikipedia

    en.wikipedia.org/wiki/List_of_educational_video...

    Videos emphasize teaching practices on a variety of topics. Free/subscription ? Teaching Channel: TED (Technology, Entertainment, Design) Multidisciplinary Covers topics in various fields. Presentations are limited to 20 minutes. Free Creative Commons Attribution–NonCommercial–NonDerivative: TED (conference) UCTV: Multidisciplinary Videos ...

  6. File:HendecagramTypes.png - Wikipedia

    en.wikipedia.org/wiki/File:HendecagramTypes.png

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  7. Teaching Channel - Wikipedia

    en.wikipedia.org/wiki/Teaching_Channel

    Teaching Channel is a multi-platform service founded in 2010 delivering professional development videos for teachers over the Internet. In addition to showcasing inspiring teachers in videos, Teaching Channel also hosts a community for educators to share ideas, best practices and enhance their knowledge.

  8. Today’s NYT ‘Strands’ Hints, Spangram and Answers for Monday ...

    www.aol.com/today-nyt-strands-hints-spangram...

    An example spangram with corresponding theme words: PEAR, FRUIT, BANANA, APPLE, etc. ... NYT Strands Spangram Answer Today. Today's spangram answer on Monday, January 13, 2025, is BAGELS.

  9. Decagram (geometry) - Wikipedia

    en.wikipedia.org/wiki/Decagram_(geometry)

    An isotoxal polygon has two vertices and one edge. There are isotoxal decagram forms, which alternates vertices at two radii. Each form has a freedom of one angle. The first is a variation of a double-wound of a pentagon {5}, and last is a variation of a double-wound of a pentagram {5/2}.