Encyclopedia > Equilateral triangle

Article Content

Equilateral triangle

In geometry, in equilateral triangle is a triangle in which all three sides have equal length.

Equilateral triangles are also equiangular -- that is, all three internal angles are also equal to each other, with measures of 60 degrees each.

Featured Article

Thomas a Kempis

... in 1434 by J. de Bellorivo and is preserved in Cologne. The editions in German began at Augsburg in 1486. The first English translation (1502) was by William Atkinso ...