Respuesta :

The circumference of a circle is found by using the following formula:

[tex]C=2\pi r[/tex]

Replace these values and find the circumference of the clock:

[tex]\begin{gathered} C=2\pi\cdot10.5 \\ C=65.97 \end{gathered}[/tex]

The circumference of the clock must be close to 65.97.