Love the coral color!!!
Yes, the dog ears do make it easier to match, but you should be OK. Put pin from the back of the block thru the intersection where the 3 triangles intersect. Should be about a quarter inch from the flat part. Now take the same pin and stick it into the seam intersection of the matching hex, with right sides together and secure the 2 pieces with more pins or glue. I would do this on a practice hex and then use a long stitch length to baste them together and verify everything will fit.