Photos

On the beach part IV - (2 x 3) + ... :-)
An alternative title - "3 + 3 + ... " :-)

This time on the beach as well, but without a dog.
There are many different kind of beaches in Australia ...
This is one of it.
What are they doing ? You'll probably ask ...
The answer is ...
I don't know too, but I reckon ...
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A puzzle...
How Long Is Australia's Coastline?

The correct answer is .... it depends!
It depends on which source you read, apparently.

Source------------------------------Length
Year Book of Australia (1978)-------36 735 km
Australian Encyclopedia-------------19 658 km
Australian Handbook-----------------19 320 km

So who is correct? The answer is: all of them!
Each source used a ruler with different sized increments on it.
If you measure the coastline with a ruler that is just 1 mm long,
you would get a length of 132 000 km!

The article on the next page is taken from The Australian Geographer,
1979 and discusses this problem in a little more detail.

[Source:]