Definitions
from The American Heritage® Dictionary of the English Language, 5th Edition.
- noun A polygon with seven sides and seven angles.
from The Century Dictionary.
- noun In geometry, a closed figure having seven angles successively united by lines.
- noun In fort, a place that has seven bastions for defense.
from the GNU version of the Collaborative International Dictionary of English.
- noun (Geom.) A plane figure consisting of seven sides and having seven angles.
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun geometry A
polygon with seven sides and seven angles.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- noun a seven-sided polygon
Etymologies
from The American Heritage® Dictionary of the English Language, 4th Edition
from Wiktionary, Creative Commons Attribution/Share-Alike License
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Examples
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The heptagon seven sides, for example, cannot be constructed with a compass and straightedge.
HERE’S LOOKING AT EUCLID Alex Bellos 2010
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Euclid was able to draw an equilateral triangle, square, pentagon and hexagon, but recall that the heptagon (which has seven sides) and the nonagon (nine) eluded him.
HERE’S LOOKING AT EUCLID Alex Bellos 2010
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Euclid was able to draw an equilateral triangle, square, pentagon and hexagon, but recall that the heptagon (which has seven sides) and the nonagon (nine) eluded him.
HERE’S LOOKING AT EUCLID Alex Bellos 2010
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It is seven-sided, a heptagon, composed of an infinitely recursive single line.
Architecture and Memory: The Renaissance Studioli of Federico da Montefeltro 2008
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The heptagon seven sides, for example, cannot be constructed with a compass and straightedge.
HERE’S LOOKING AT EUCLID Alex Bellos 2010
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The heptagon seven sides, for example, cannot be constructed with a compass and straightedge.
HERE’S LOOKING AT EUCLID Alex Bellos 2010
-
Euclid was able to draw an equilateral triangle, square, pentagon and hexagon, but recall that the heptagon (which has seven sides) and the nonagon (nine) eluded him.
HERE’S LOOKING AT EUCLID Alex Bellos 2010
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If the model proves to be successful, the two countries will extend the agreement to a larger area, gradually, and chose the extended area based on experiences accumulated in exploring and exploiting this heptagon.
The East China Sea deal - details Sun Bin 2008
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The 7 coordinates for the corners of the heptagon are
The East China Sea deal - details Sun Bin 2008
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Upon which the same disorder, confusion, and error follow, as would if a man, going to demonstrate something of an heptagon, should, in the diagram he took to do it, leave out one of the angles, or by oversight make the figure with one angle more than the name ordinarily imported, or he intended it should when at first he thought of his demonstration.
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