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N. Honors PreCalc - Section 9-5: Applications of Trigonometry to Navigation and Surveying. Surveying. Course / Bearing. N. E. W. S. From one point to another:. B. A.

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slide4

N

Honors PreCalc - Section 9-5: Applications of Trigonometry to Navigation

and Surveying

Surveying

Course / Bearing

N

E

W

S

From one point to another:

B

A

slide5

Ex #1: A ship proceeds on a course of 300o for 2 hours at a speed of 15 knots (1 knot = 1 nautical mile per hour). Then it changes course to 230o, continuing at 15 knots for 3 more hours. At that time, how far is the ship from its starting point?

Extra Question:

On what course would you return home?

slide6

N

N

N

Ex #2: Sketch the plot of land described. Then find its area.

From a granite post, proceed 195 ft east along Tasker Hill Road, then along a bearing of S32oE for 260 ft, then along a bearing of S68oW for 385 ft, and finally along a line back to the granite post.