| Length | Answer | % Correct |
|---|---|---|
| 1,261 km | Argentina | 97%
|
| 593 km | Suriname | 97%
|
| 1,068 km | Uruguay | 97%
|
| 1,644 km | Colombia | 94%
|
| 1,365 km | Paraguay | 94%
|
| 2,995 km | Peru | 94%
|
| 3,423 km | Bolivia | 87%
|
| 2,200 km | Venezuela | 87%
|
| 1,606 km | Guyana | 84%
|
| 730 km | France | 74%
|