In most cases, the edges of continents do not exactly coincide with the boundaries between tectonic plates. While some continental margins may align with plate boundaries, such as the west coast of South America where the Andes Mountains mark the boundary between the Nazca Plate and the South American Plate, many others do not.

It's important to understand that tectonic plates are constantly moving, albeit at a very slow pace, and they interact with each other in complex ways. Continents, on the other hand, are the large landmasses that make up the Earth's surface, and their shapes and positions are influenced by a combination of geological processes including plate tectonics, erosion, and deposition.

Here are a few examples where the edges of continents and plate boundaries do not align:

1. Africa and Eurasia: The boundary between the African Plate and the Eurasian Plate runs through the middle of the Mediterranean Sea, rather than along the coast of Africa.

2. North America and South America: The Caribbean Plate is located between the North American Plate and the South American Plate, separating the two continents.

3. Australia and Antarctica: The boundary between the Australian Plate and the Antarctic Plate is located in the Southern Ocean, well away from the edges of either continent.

4. Antarctica and South America: The Scotia Sea separates the Antarctic Plate and South American Plate, with Tierra del Fuego being an extension of the South American continent.

5. Southeast Asia: The region is characterized by complex plate interactions, with several microplates and the boundaries between them not directly corresponding to the edges of the Asian continent.

These are just a few examples, and there are many other cases where the edges of continents and plate boundaries are not aligned. It's worth noting that the study of plate tectonics and continental drift is an ever-evolving field, and our understanding of these processes continues to improve with time.