How to make a strong non-90 miter joint?
I am looking for some advice on how to make a strong joint that is essentially a miter joint, but the joints are NOT at 90 degrees to each other. The overall shape is a trapezpoid box (one side longer than the other, sides same length but opposite) and the angles are about 9 or 10 degrees off of 90. This is essentially what I am thinking a dovetail would be good for, but given the application, this seems like a lot of effort to go to and the complexity the non-90 degree angles add. I've looked at some alternatives like box joints and splined joints. I do NOT want a screwed-together joint. A splined joint, either hidden or visible, seems like it might work but am not sure. So what are my options here? Thanks!
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