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Chapter 4: Problem 1

A _____ measures the acute angle that a path or line of sight makes with a fixed north-south line.

Short Answer

Expert verified
A compass bearing measures the acute angle that a path or line of sight makes with a fixed north-south line.

Step by step solution

01

Identifying tools used in navigation

Start by listing down tools commonly used in navigation, especially those known to measure angles with respect to the north-south line. This list might include tools such as a compass, sextant, theodolite, etc.
02

Understanding how the tools work

On analyzing how each tool works, one would find that a compass is used to identify the direction with respect to the north-south line but it does not specifically measure an acute angle. The sextant and theodolite, on the other hand, are used to measure angles - but usually in the context of celestial bodies, not necessarily between a path or line of sight and the north-south line.
03

Connecting the usage to the problem

After understanding the operation of each tool, we can see that there's a specific navigational tool that measures the acute angle which a line of sight or path makes with the north-south line - that tool is the compass bearing.

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