Pangaea is not "true" in the sense of being something that currently exists. It was a supercontinent that existed millions of years ago, and it has since broken apart into the continents we know today. However, the existence of Pangaea is a well-supported scientific theory based on a large body of evidence. Here's why scientists believe Pangaea was real:

* Matching coastlines: The shapes of the continents, particularly on the east coast of South America and the west coast of Africa, fit together like puzzle pieces. This suggests they were once connected.

* Geological similarities: The same types of rocks, fossils, and geological formations are found on different continents that are now separated by vast oceans. This indicates they were once part of the same landmass.

* Fossil evidence: The same types of fossils, including the fossils of extinct animals and plants, are found on continents that are now far apart. This suggests that these continents were once connected.

* Magnetic striping: Scientists have mapped the magnetic signature of rocks on the ocean floor, which shows a symmetrical pattern of magnetic stripes. This pattern is consistent with the idea of seafloor spreading, which is the process by which new oceanic crust is created at mid-ocean ridges and then moves away from the ridge, carrying continents with it.

While Pangaea is a theory, it is a well-established one, supported by a vast amount of evidence. It's not a matter of "true" or "false," but rather a scientific understanding of the Earth's history.