**Converting Between Angle Measurements**

Especially degrees and radians

**1.20** Express the angle measurement in degrees: 3 revolutions.

In order to convert from one unit of angle measurement to another, you multiply it by a fraction of the following form:

Select a simple angle when you create the fraction. For example, Problems 1.9–1.10 state that 1 revolution = 360°. This problem instructs you to convert from revolutions to degrees, so “an angle measured in the new units” would be 360°, and “the same angle measured in the old units” would be 1 revolution. Note that the units themselves are omitted from the fraction:

Thus, to convert 3 revolutions ...

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