Which expression converts 8 radians to degrees?

A. [tex]\(8 \cdot \pi\)[/tex]

B. [tex]\(\frac{8 \cdot \pi}{180^{\circ}}\)[/tex]

C. [tex]\(8 \cdot 180^{\circ}\)[/tex]

D. [tex]\(\frac{8 \cdot 180^{\circ}}{\pi}\)[/tex]



Answer :

To convert from radians to degrees, we use the formula:

[tex]\[ \text{degrees} = \text{radians} \times \frac{180}{\pi} \][/tex]

This formula comes from the fact that [tex]\(\pi\)[/tex] radians is equivalent to [tex]\(180^{\circ}\)[/tex]. Therefore, multiplying the number of radians by [tex]\(\frac{180^{\circ}}{\pi}\)[/tex] will give us the equivalent measure in degrees.

Given the question, we are converting 8 radians to degrees. We will use the expression from the formula:

[tex]\[ \text{degrees} = 8 \times \frac{180}{\pi} \][/tex]

To identify the correct expression from the given options:

A. [tex]\(8 \pi\)[/tex]

B. [tex]\(\frac{\pi}{180^{\circ}}\)[/tex]

C. [tex]\(8 \times 180^{\circ}\)[/tex]

D. [tex]\(\frac{180^{\circ}}{\pi}\)[/tex]

Option D, [tex]\(\frac{180^{\circ}}{\pi}\)[/tex], is the conversion factor we need to multiply by the given radians. Thus, the correct expression to convert 8 radians to degrees is:

[tex]\[ 8 \times \frac{180^{\circ}}{\pi} \][/tex]

Therefore, the correct answer is:

[tex]\[ \boxed{\frac{180^{\circ}}{\pi}} \][/tex]