The area of Greenland is 9.5 thousand square kilometers.
Since Greenland is larger than Britain by about 195.5 square kilometers, the following formula can be obtained:
9.5x - x= 195.5
8.5x= 195.5
Solution: x=23
Then: 23+ 195.5=2 18.5.
So: the areas of Great Britain and Greenland are 230,000 square kilometers and 2185,000 square kilometers respectively.