Answer:
B. [tex]\dfrac{1}{2} (121)[/tex]
Step-by-step explanation:
Find radius using formula: [tex]\dfrac{d}{2} }[/tex] where d is diameter.
using the formula:
[tex]\hookrightarrow \dfrac{121}{2}[/tex]
separate:
[tex]\hookrightarrow \dfrac{1}{2} (121)[/tex]
