The diameter of the Ferris wheel in the playground is 24m, and it takes 8 minutes to make a revolution. How many meters does the outer edge of the Ferris wheel rotate per minute?
游乐场的摩天轮的直径是24m，8分钟转一圈，摩天轮外沿每分转动多少米？
<gadget id="calculator">24 / 8</gadget>
<output>3</output>

<gadget id="calculator">3.14 * 3</gadget>
<output>9.42</output>

<result>9.42</result>