Copied this from another thread. Thanks Admin for finding this one.
Some of the online ones are not correct, but I checked this one and it is!
http://www.quilterscache.com/H/howtomakesettingtriangles.html
Some of the online ones are not correct, but I checked this one and it is!
http://www.quilterscache.com/H/howtomakesettingtriangles.html