Question

The distance around a circle is 56.55 meters long. What diameter of the circle?

Answer 1

Answer:

113.1

Step-by-step explanation:

Answer 2

$\bf \stackrel{\stackrel{\textit{distance around it\qquad \qquad }}{\downarrow \qquad\qquad }}{\textit{circumference of a circle}}\\\\ C=\pi d~~ \begin{cases} d=diameter\\[-0.5em] \hrulefill\\ C=56.55 \end{cases}\implies 56.55=\pi d\implies \cfrac{56.55}{\pi }=d\implies 18\approx d$