Chapter 12, Problem 6STP

To determine

To calculate:To find the circumference of the rink, rounded to the nearest tenth

Answer to Problem 6STP

The circumference of rink is $408.4$ feet.

Explanation of Solution

Given information:A circular ice-skating rink has a radius of $65$ feet

Formula Used:

Circumferenceof circle is given by the below formula:

  $Circumference=2\pi r$

Where,

  $r=$ Radius of circle

Calculation:

Given a circular ice-skating rink has a radius of $65$ feet

Here, dimensions of circle as follows:

  $Radius=65feet$

Circumference of rink is calculated as follows:

  $Circumference=2\pi r$

Substituting the values, volume is

  $\begin{array}{l}Circumference=2\times \frac{22}{7}\times 65\\ Circumference=408.41\\ Circumference\approx 408.4\end{array}$

Conclusion:

Hence, circumference of rink is $408.4$ feet.

Thus, correct option is J