Heptagon
Chamber's Etymological of the English Language · 1895 · p. 237
hep'ta-gon, n. a plane figure with seven angles and seven sides —adj Heptag onal. [Gr. heptagon.’ seven-cornered hept a and gimia. an angle.
Bu kavram başka kaynaklarda da geçiyor
The American Dictionary and Cyclopedia (1910)
Chamber's Twientieth Century Dictionary (1908)
The Optical Dictionary (1904)
Chandler's Encyclopedia (1898)
An Illustrated Encyclopedic Medical Dictionary (1893)
An Illustrated Dictionary of Words Used In Art and Archealogy. (1883)
Zell's Condensed Dictionary (1879)
Dictionary of Science, Literature and Art (1854)
Dictionary of Science, Literature and Art (1842)
A Military Dictionary (1810)
Readham'da tam maddeyi gor →