###### Exercise 23

A circle’s diameter is \({16\ {\rm m}}\text{.}\)

This circle’s circumference, in terms of \(\pi\text{,}\) is .

This circle’s circumference, rounded to the hundredth place, is .

This circle’s area, in terms of \(\pi\text{,}\) is .

This circle’s area, rounded to the hundredth place, is .