In dictionaries:
the triangle
Shape with three straight sides.
right triangle
Triangle with one 90-degree angle.
equilateral triangle
Triangle with three equal sides.
isosceles triangle
Two sides of equal length.
Golden Triangle
Triangle with three equal angles.
love triangle
Romantic involvement among three people.
iron triangle
(US politics, political science) The policy-making relationship among the congressional committees, the bureaucracy (executive, sometimes called “government agencies”), and interest groups or lobbyists.
Bermuda Triangle
Mysterious maritime area, ships vanish.
posterior triangle
(anatomy) A triangular region that is a landmark in the neck, has its apex above at the occipital bone, and is bounded in front by the sternocleidomastoid muscle, behind by the anterior margin of the trapezius, and inferiorly by the middle third of the clavicle.
spherical triangle
Triangle on sphere's curved surface.
triangle inequality
Sum of two sides greater.
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