Erosion. Back when Pangaea existed, all of the continents fit perfectly together. As they hit each other, they broke off pieces of land and eventually broke apart.
Pangea did fit perfectly together. However, if you tried to fit the continents into Pangea again today, you'd have difficulty. This is because their coastlines are changed due to water erosion.
A map of the continents (with the exclusion of Antarctica and the inclusion of Greenland) is included in the link below and depicts how they would fit together today. They do not completely lock perfectly as their coasts have been eroded.
If put together, they would fit perfectly into one huge super continent like a puzzle.
They would fit roughly together but not perfectly due to years and years of erosion. As evident as Africa and So. America are that they were once joined. Erosion does not work. Even with that they will not fit. Try it with cut outs. But shrink the size of the earths sphere to about 1/2 its size today and they fit perfect.
pangea is a super-continent formed a long time ago when all of the seven continents came together. the largest amount of evidence scientists have is that all of the continents fit almost perfectly together, like a puzzle.
every one should because the continents did once fit together
When all the continents fit together into one big continent, we call that Pangaea.
Continents do not fit together perfectly, for the same reason a cookie won't if you were to break it violently. ...Some of the pieces that would otherwise cause a perfect fit falls off from the larger pieces as small/large crumbs. Therefore, since it was a powerful force that caused continents to drift, some of the pieces connected to the landmass had most likely fallen or remains adrift as an island or other type of landmass.
Continents do not fit together perfectly, for the same reason a cookie won't if you were to break it violently. ...Some of the pieces that would otherwise cause a perfect fit falls off from the larger pieces as small/large crumbs. Therefore, since it was a powerful force that caused continents to drift, some of the pieces connected to the landmass had most likely fallen or remains adrift as an island or other type of landmass.
Because sine the time of separation which happened millions of years ago, the edges have since become severly eroded
One reason is because the Coastlines of land masses change over time. If you map the edges of the continental shelves, the fit is much better.
The continents fit together just like a puzzle. The edges of the continents line up so that South America fits right against Africa.