equilateral

All sides equal

Equilateral describes a shape whose sides are all equal in length.

The term applies most often to triangles: an equilateral triangle has three sides of the same length and three equal angles.

The engineer specified an equilateral design for maximum stability.

geometry

triangle

Three-sided plane figure

polygonMultisided plane figure
hexagonSix-sided closed figure
pentagonFive-sided closed figure

octagon · vertex · angle · perimeter · isosceles · scalene · right-angled · congruent · regular · sides

measurement

sides

Lateral edges or teams

lengthMeasure of extent
dimensionMeasurable extent or scope
ratioComparative numerical relation

proportion · equivalence · isometry · correspondence · parity · uniformity · identical · congruent · matching

symmetry

congruence

State of agreement

uniformityState of being identical
regularityConsistent, predictable occurrence
mirrorReflective viewing surface

reflection · invariance · bilateral · rotational · balance · correspondence · order · alignment · identical · matching

Categories

geometryangles, circles, angle, shapes, lines
Trianglestriangle, isosceles, scalene, right triangle, isosceles triangle
polygon featuressides, vertices, edges, angles, perimeter
shape propertiesconvex, concave, symmetric, regular, irregular
geometric shapessphere, triangle, square, cone, rectangle
polygonspolygon, triangle, quadrilateral, pentagon, hexagon

Opposites

side equality

equilateralscalene

All sides unequal

nonequilateral · unequal · irregular · asymmetric · lopsided

Phrases

equilateral triangleThree-sided figure, sides identical

Family

equilaterals, equilateral triangle

Familiarity: Top 100,000
Profile: Known to kids · Used worldwide · Timeless · Concrete · Rated G