To convert degrees to radians, you can use the formula:
\[ \text{radians} = \text{degrees} \times \frac{\pi}{180} \]
For 252 degrees, the conversion to radians would be:
\[ \text{radians} = 252 \times \frac{\pi}{180} \]
First, simplify \( \frac{252}{180} \):
\[ \frac{252}{180} = \frac{252 \div 36}{180 \div 36} = \frac{7}{5} \]
Now plug that back into the formula:
\[ \text{radians} = \frac{7}{5} \pi \]
Thus, \( 252 \) degrees is equal to \( \frac{7\pi}{5} \) radians.
The correct answer corresponds to option B:
B \( \frac{7\pi}{5} \) radians.