Application of Trigonometry to Navigation and Surveying

In this section, we discuss the use of trigonometry to solve navigation and surveying problems.

The course of a plane or a ship is the angle, measured clockwise, from the north direction to the direction the plane or the ship is heading in.

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The compass bearing is a direction of which way to travel in relation to the north. It is measured in the same way as shown on the right-most picture by plotting the locations of two points and measuring the angle clockwise between a line located between them and another line pointing north. Keep in mind that this may result in large angles up to 360º. ...

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