I have heard about the Bermuda Triangle ... Now its for you to tell me about this other, Formosa Triangle ... !
More specifically, whether, Formosa Triangle's location [the Point, where the Latitude crosses the Longitude, in the Indo-Pacific Region of the Northern Hemisphere] is similar to Bermuda Triangle's location in the Central N.W Atlantic Ocean Region.
Once we establish locational similarities, we can work out, the other Two possible Triangle locations, in the Southern Hemisphere.
By there way, there are two other Formosa's, besides the one which is now Taiwan ... ... one is in Argentina, and the other, is in Brazil ...
The one in Argentina, situated at 26.07 S, 58.13 W, seems to be a good "Triangle" candidate in the Southern Hemisphere ... after establishing the first two locations, we can start looking for the other Pair, in the Southern Hemisphere.
Suggest you read my paper about the UFOs and the Aliens phenomenon, for a meaningful joint effort.