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Definition of Equilateral triangle
1. Noun. A three-sided regular polygon.
Generic synonyms: Regular Polygon, Triangle, Trigon, Trilateral
Specialized synonyms: Delta
Definition of Equilateral triangle
1. Noun. (geometry) A triangle having all three sides equal. ¹
¹ Source: wiktionary.com
Lexicographical Neighbors of Equilateral Triangle
Literary usage of Equilateral triangle
Below you will find example usage of this term as found in modern and/or classical literature:
1. The Kinematics of Machinery: Outlines of a Theory of Machines by Franz Reuleaux (1876)
"They are (a) for the equilateral triangle an equilateral curve-triangle inscribed
within it,— ... relatively to the equilateral triangle. (Plates I and II. ..."
2. Public School Methods (1921)
"(c) equilateral triangle. H= \/(BJ-\B2); or if B be 1, H=V(12-^2)- or V-75- which
... What fractional part of the altitude of an equilateral triangle is the ..."
3. An Introduction to the Ancient and Modern Geometry of Conics: Being a by Charles Taylor (1881)
"Then if the ellipse be projected into a circle, SPII will at the same time project
into an equilateral triangle inscribed in the circle, since each side of ..."
4. Primary Object Lessons: For Training the Senses and Developing the Faculties by Norman Allison Calkins (1898)
"equilateral triangle. — What do you call this figure which I hold in my hand?
"A triangle. ... How many acute angles has the equilateral triangle ? ..."
5. The Popular Science Monthly (1889)
"Can you make an equilateral triangle whose sides shall be two inches, ... Can you
divide an equilateral triangle into six parts that shall be equal and ..."
6. The Elasticity and Resistance of the Materials of Engineering by William Hubert Burr (1915)
"equilateral triangle about its Centre of Gravity. This case is that of a cylindrical
piece whose normal cross- section is an equilateral triangle, ..."
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