In Exercises 21–28, convert each angle in radians to degrees.7𝜋6

Radians and degrees are two units for measuring angles. A full circle is 360 degrees, which is equivalent to 2π radians. To convert between these units, one can use the relationship that 180 degrees equals π radians, allowing for straightforward calculations.

The conversion from radians to degrees can be performed using the formula: degrees = radians × (180/π). This formula provides a direct method to translate the measure of an angle from radians to degrees, ensuring accurate results in various applications.

When converting angles, it is often necessary to simplify fractions. For example, when dealing with angles like 7π/6, recognizing that this can be expressed in terms of degrees helps in understanding the angle's position on the unit circle and its corresponding degree measure.