Question

A ship sails 80 degrees for 120 nautical miles, then 200 degrees for 200 nautical miles. How far is it then from the starting point?

Answer 1

190.79 miles

Explanation:

Answer 2

Answer: distance from the starting point = 191 nautical mile

Explanation:

80 degree = N80°E

200 degree = S 20°W

The distance from the starting point will be achieved by using cosine formula.

√(120²+220²-2×120×220cos60)

= 20√91

Distance = 190.79 miles

Please find the attached file for the figure.