To convert radians to degrees, we use the formula:
[tex]\[
\text{degrees} = \text{radians} \times \left(\frac{180}{\pi}\right)
\][/tex]
Let's apply this formula to the given radian values.
1. For \(\frac{1}{2} \pi\):
- First, we identify the radian value: \(\frac{1}{2} \pi\).
- Now, we multiply this value by \(\frac{180}{\pi}\):
[tex]\[
\frac{1}{2} \pi \times \left(\frac{180}{\pi}\right) = \frac{1}{2} \times 180
\][/tex]
- Simplifying this, we get:
[tex]\[
= 90.0
\][/tex]
Therefore, \(\frac{1}{2} \pi = 90.0\) degrees.
2. For \(-\frac{3}{7} \pi\):
- First, we take the radian value: \(-\frac{3}{7} \pi\).
- Now, we convert this to degrees by multiplying by \(\frac{180}{\pi}\):
[tex]\[
-\frac{3}{7} \pi \times \left(\frac{180}{\pi}\right) = -\frac{3}{7} \times 180
\][/tex]
- Simplifying this, we perform the multiplication:
[tex]\[
= -77.1
\][/tex]
Therefore, \(-\frac{3}{7} \pi = -77.1\) degrees.
Thus, the conversions are:
[tex]\[
\begin{array}{l}
\frac{1}{2} \pi = 90.0^\circ \\
-\frac{3}{7} \pi = -77.1^\circ
\end{array}
\][/tex]
