# Triggggggg

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A ship is 90 miles south and 20 miles east of port. The captain wants to travel directly to port. What bearing should be taken?

• Triggggggg -

"90 miles south and 20 miles east of port"
means the direction along which the ship must sail is:
x=-90, y=20
angle = atan(20,-90) = 180° - 12°-31'-44"
= 167°-28'-16" (in trigonometry notation).

To convert trigonometry notation to bearing, subtract angle from 90° or 450° if the angle exceeds 90°.

Bearing (clockwise from north)
= 450° - 167°-28'-46"
= 282°-31'-44"

• Triggggggg -

uiuhi

• Triggggggg -

hi but

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