Their length can be calculated by a common sine or cosine function. The 60th parallel north or south is half as long as the Equator (disregarding Earth's minor flattening by 0.3%). A circle of ...
The British Antarctic Territory and Pobjoy Mint have announced the release of a brand new £2 coin to commemorate the 60th Anniversary ... which are situated south of the 60th parallel of south ...
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