Used Boats Eastern Cape

Used Boats Eastern Cape

I have this problem by using a triangle, but do not know how to correct?

The problem says: You are sailing to the east (90degreeT) at the mouth of the York River by the Chesapeake Bay to the Old Plantation Flats Light Real Estate in Cape Charles on the coast is clear in a special day. Wolf Trap, you can see Northern Light (0 degreeT) from its current position. The chart measures the distance between light Wolf Trap former plantation floor light of 13.1 nm. The chart measures the direction of the light trap wolves in the light of old plantation soil 140degrees T. How many nautical miles (tenth) is that his boat to the old plantation land of light? How many nautical miles (one tenth) of his boat Wolf Trap is light? Please solve this problem and explain how.

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Eastern Harbour, Hong Kong 1904