Longest combined countries

Random Geography or border Quiz

Can you name the pairs of bordering countries with the greatest combined length?

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How to Play
Example: for "France Italy" the combined length is 2078 km (between Brittany and the "heel" of the Italian "boot"). EACH COUNTRY APPEARS ONLY ONCE. Therefore "France Spain" wouldn't be a valid answer, as France was already used (and the combined length France+Spain is shorter than France+Italy). Extreme points are on the same continuous landmass (islands, exclaves and dependencies are excluded). Countries may be entered in either order.
Score 0/12 Timer 06:00
Total length Continent(s)CountriesExtreme points
8247 km (5125 mi) Asia/Europe
7372 km (4581 mi) North America
6966 km (4329 mi) Asia
6499 km (4038 mi) South America
5980 km (3716 mi) South America
3718 km (2310 mi) Asia
3536 km (2197 mi) Africa
3468 km (2155 mi) Africa
3461 km (2150 mi) North America
3131 km (1945 mi) Africa
3126 km (1942 mi) Africa
3073 km (1910 mi) Africa

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