American Heritage® Dictionary of the English Language, Fourth Edition
- adj. Having all angles equal.
Century Dictionary and Cyclopedia
- In geometry, having all the angles equal.
- adj. geometry Of a polygon, having all interior angles equal. This is not necessarily a regular polygon, since that would also be equilateral; a rectangle is equiangular but not equilateral, unless it is a square.
GNU Webster's 1913
- adj. Having equal angles
- adj. having all angles equal
“Its spiral form is known as an equiangular spiral.”
“A square is distinguished from other polygons by being four-sided, equilateral, and equiangular.”
“In well-formed subjects, the anterior space is equiangular, the base being equal to each side; but according as the tuberosities approach the median line, the base becomes narrowed, and the triangle is thereby rendered acute.”
“Ah! you're found out, you _rectilineal antecedent_, and _equiangular_ old hag!”
“Thus it is as true to say that 'All equiangular triangles are equilateral' as that 'All equilateral triangles are equiangular.”
“For instance, in the particular case of equilateral triangles it is true to say, not only that 'all equilateral triangles are equiangular,' but also that 'all equiangular triangles are equilateral.”
“We may have a division consisting of mutually exclusive members, which yet involves a mixture of different bases, e.g. if we were to divide triangle into scalene, isosceles and equiangular.”
“For example, if all the equilateral triangles are all the equiangular, we know at once that all non-equilateral triangles are also non-equiangular.”
“Thus all equilateral triangles are equiangular triangles; but in one case they are named from the equality of their angles, and in the other from the equality of their sides.”
“The proof of Euclid's axiom looked for in the properties of the equiangular spiral_ (London, 1840), which went through four editions, and the _Theory of Parallels.”
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