Answer:
66 in
Explanation:
the circumference can be calculated as:
[tex]C=d\cdot\pi[/tex]Where d is the diameter and π is 22/7.
So, replacing the values, we get:
[tex]C=21\cdot\frac{22}{7}=\frac{21\cdot22}{7}=\frac{462}{7}=66\text{ in}[/tex]Therefore, the circumference is 66 in.
