What is the equivalent degree measure of [tex]\(-\frac{11 \pi}{12}\)[/tex] radians written in simplest terms?

A. [tex]\(-\frac{1980^{\circ}}{12}\)[/tex]
B. [tex]\(165^{\circ}\)[/tex]
C. [tex]\(-\frac{11 \pi^2}{2160}\)[/tex]
D. [tex]\(-165^{\circ}\)[/tex]



Answer :

To find the degree measure equivalent of [tex]\(-\frac{11 \pi}{12}\)[/tex] radians, we need to use the conversion factor between radians and degrees. We know that:

[tex]\[ 1 \text{ radian} = \frac{180^{\circ}}{\pi} \][/tex]

Therefore, to convert [tex]\(-\frac{11 \pi}{12}\)[/tex] radians to degrees, we multiply by [tex]\(\frac{180^{\circ}}{\pi}\)[/tex]:

[tex]\[ -\frac{11 \pi}{12} \text{ radians} \times \frac{180^{\circ}}{\pi} = -\frac{11 \pi \times 180^{\circ}}{12 \pi} \][/tex]

Here, the [tex]\(\pi\)[/tex] terms cancel out:

[tex]\[ -\frac{11 \times 180^{\circ}}{12} \][/tex]

We can simplify this further by performing the multiplication and division:

[tex]\[ -\frac{1980^{\circ}}{12} = -165^{\circ} \][/tex]

Thus, the equivalent degree measure of [tex]\(-\frac{11 \pi}{12}\)[/tex] radians is [tex]\(-165^{\circ}\)[/tex]. So, the correct answer is:

[tex]\[ -165^{\circ} \][/tex]