"triangle" - key terms from Wikipedia

bermuda triangle
bizarre love triangle
black triangle
blue triangle
color triangle
coral triangle
devil's triangle
equilateral triangle
federal triangle
gate open the triangle	gate
geodesic triangle
golden triangle
historic triangle
hyperbolic triangle
iron triangle
isosceles triangle
kepler triangle
love triangle
open the triangle	gate
open the triangle	gate championship
parliamentary triangle
pascal's triangle
penrose triangle
pink triangle
rear triangle
red triangle
research triangle
research triangle	park
reuleaux triangle
right triangle
sierpinski triangle
spherical triangle
summer triangle
triangle
triangle	center
triangle	centers
triangle	choke
triangle	club
triangle	control frame
triangle	gate
triangle	group
triangle	heart
triangle	hill
triangle	inequality
triangle	of death
triangle	offense
triangle	shirtwaist
triangle	shirtwaist factory
triangle	transit
triangle	wave