The circumference of a circle is $88\text{cm}$. Find its radius (in $\text{cm}$).

The formula for the circumference of a circle is:
$$\text{Circumference}=2\pi r$$
Given that the circumference is $88\text{cm}$ and taking $\pi =\frac{22}{7}$:
$$88=2\times \frac{22}{7}\times r$$
$$88=\frac{44}{7}\times r$$
$$r=\frac{88\times 7}{44}$$
$$r=2\times 7=14\text{cm}$$