Which is closer to the South Pole, the southern tip of Africa or the most southern edge of mainland Australia? My answer is the most southern edge of mainland Australia.

Right.

To determine which is closer to the South Pole - the southern tip of Africa or the most southern edge of mainland Australia, we can follow these steps:

1. Identify the latitude of the southern tip of Africa: The southernmost point of Africa is located at Cape Agulhas, which is approximately at latitude 34.8 degrees south.

2. Determine the latitude of the most southern edge of mainland Australia: The southernmost point of mainland Australia is Wilsons Promontory in Victoria, which is situated at approximately latitude 39 degrees south.

3. Compare the latitudes: By comparing the latitudes, we can see that the southern tip of Africa (34.8 degrees south) is closer to the equator than the most southern edge of mainland Australia (39 degrees south).

Since the South Pole is further south than both Cape Agulhas and Wilsons Promontory, the southern tip of Africa is indeed closer to the South Pole than the most southern edge of mainland Australia.

Therefore, your answer that the southern tip of Africa is closer to the South Pole is correct.