Their resemblance to the end of the other continent.. it's like playing a jigsaw puzzle.
that the continents now are one from the past and it's called pangaea
The shapes of the continents today tell us that long time ago, the continents are amalgamated, because of the slowest movement of the earth's tectonic plates, neighboring continents and countries started to drift away little by little, the best association to this is the large continent Pangaea, which is believed to be the largest way back then. the seven major continents today composing Pangaea are drifted apart and are thousand miles away from each other unlike before.