Triangles rhymes with:
triangle's, triangle's, triangle's, rectangles, triangle's, angles, bangles, bengals, bojangles', dangles, dingell's, engels, gingles, ingels, ingles, jingles, jungels, jungles, mangels, mangles, mingles, mongols, nightengale's, nightengales, pringle's, rectangles, shingles, singles, tangles, triangle's, wrangles
Triangles sounds like:
tranquilize, transalaska, translogic, transsexuals, triangle's