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How to Crochet the Triangles Afghan Here is the link to Ravelry so you can see all the Triangles Afghans people have made. https://www.ravelry.com/patterns/library/triangles-afghan

How to Crochet THEA Triangle Motif Pattern #1204│by ThePatternFamily

Triangle crochet motif, a little more interesting than a plain triangle, but not too complicated

See http://www.flushedwithrosycolour.com/2012/11/three-round-triangle-free-pattern.html

Crochet pattern for making a Celtic Triquetra knot.

Written pattern can be found here; http://happyberrycrochet.blogspot.co.uk/2014/06/how-to-crochet-celtic-triangle-yarn.html