As you can figure out from a quick google search, this bike almost does not exist. Finding info for this bike has been near impossible. If you can direct me to any info about which hanger I need to replace my broken rear derailleur hanger, that would be awesome.
While the Triace A310 is an entry level bike I wouldn't put it in the same class as a Walmart BSO (bicycle shaped object). It doesn't appear to be a bike brand common to the U.S. Your best bet would be to remove the hanger and take it to your local bike shop. Most shops have a wall chart that has full size photos of the 50-60 most common types. You match yours' to the example and they can order you a #46 hanger or what ever number is appropriate. If it is one of the less common type that they don't stock you may want to order two so you have a spare.
That's because Triace is a BSO (Walmart bike). I'm surprised one would have a replacable derailleur hanger.
If it does have a removable derailleur hanger, you're likely going to have try a generic derailleur hanger (disclaimer: no affiliation, never bought from them) or if it had quick release (unlikely), something like Problem Solvers' Universal Derailleur Hanger. If you post a picture of the broken derailleur hanger, someone may be able to match it to a good generic (or you can do that yourself).
If the hanger is built into the frame and is just bent, you can use a crescent wrench to adjust it. If its built into the frame and broken off, time for a new frame (or if you're ambitious, you might be able to weld a new one on.