Is 770 square millimeters as big as Wales?
It's about 0.00000000000004 times as big as Wales
The size of Wales is about 20,732,000,000,000,000.0000000000000000000000 square millimeters.
(a.k.a. Cymru) (total area)
The area of the country of Wales (in the United Kingdom) is 20,732,000,000,000,000.0000000000000000000000 square millimeters. More than 764,700,000,000,000.0000000000000000000 square millimeters, or about 4% of the country's land area, is made up of the fifty-plus islands in the Irish and Celtic Seas off the coast of the Welsh mainland.
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