An attempt to escape his island

An attempt to escape his island

In an attempt to escape his island, Gilligan builds a raft and sets to sea. The wind shifts a great deal during the day, and he is blown along the following straight lines:

2.5 km 45° north of west; then 
4.70 km 60° south of east; then 
5.1 km straight east; then 
7.2 km 55° south of west; and finally 
2.8 km 5° north of east.

What is his final position relative to the island?

?km

?° south of east

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