plural of equilateral triangle

plural of acute triangle

plural of scalene triangle

plural of obtuse triangle

A right-angled triangular array of the natural numbers, whose generation is often set as an exercise in computer science education.

(geometry) A figure consisting of three circular arcs, each centered on the intersection of the other two.

A triangle at an intersection, formed by the two roads or rights-of-way and a third line, which must be kept clear of obstructions such as hedges so that people in one road can see cars approaching on the other.

plural of right triangle

An area in the Atlantic Ocean where many ships and planes have disappeared under allegedly mysterious circumstances. / A similar area in the Pacific Ocean.

(rare) Synonym of devil's threesome.