equilateral's Usage Examples:

Incidentally Pappus describes the thirteen other polyhedra bounded by equilateral and equiangular but not similar polygons, discovered by Archimedes, and finds, by a method recalling that of Archimedes, the surface and volume of a sphere.

Omega Centauri makes an almost equilateral triangle with these two stars on their western side.

The isothermals are approximately equilateral hyperbolas (pv constant), with the axes of p and v for asymptotes, for a gas or unsaturated vapour, but coincide with the isopiestics for a saturated vapour in presence of its liquid.

Five equilateral triangles covertically placed would stand on a pentagonal base, and it was found that, by forming several sets of such pyramids, a solid could be obtained which had zo triangular faces, which met in pairs to form 30 edges, and in fives to form 12 vertices.

If the faces be all equal equilateral triangles the solid is termed the "regular" tetrahedron.

Although the pointed arches used are sometimes equilateral and sometimes drop-arches, the lancet-arch is the most characteristic.

The equilateral triangle is the basis of the tetrahedron, octahedron and icosahedron.

32 was first proved in a general way by the Pythagoreans; but, on the other hand, we learn from Geminus that the ancient geometers observed the equality to two right angles in each kind of triangle - in the equilateral first, then in the isosceles, and lastly in the scalene (Apoll.

In a similar manner, four covertical equilateral triangles stand on a square base.

The regular octahedron has for its faces equilateral triangles; it is the reciprocal of the cube.

The names of these five solids are: (r) the tetrahedron, enclosed by four equilateral triangles; (2) the cube or hexahedron, enclosed by 6 squares; (3) the octahedron, enclosed by 8 equilateral triangles; (4) the dodecahedron, enclosed by 12 pentagons; (5) the icosahedron, enclosed by 20 equilateral triangles.

Dimyarian, with orbicular and almost equilateral shell; adherent; hinge without teeth Sand ligament internal.

-Shell thin, very inequilateral, anterior part atrophied, umbones projecting.

Synonyms:

equal,

Antonyms:

incomparable, unequal,