The wall of a gymnasium is circular, naughty walks around the wall, a total of 628 steps, each step is 0.6 meters long. What is the floor area of the gymnasium?
一座体育馆的围墙是圆形的，淘气沿着围墙走了一圈，一共是628步，淘气每步的长0.6米．这座体育馆的占地面积是多少？
<gadget id="calculator">0.6 * 628</gadget>
<output>376.8</output>

<gadget id="calculator">376.8 / 3.14 / 2</gadget>
<output>60</output>

<gadget id="calculator">60 ** 2</gadget>
<output>3_600</output>

<gadget id="calculator">3.14 * 3_600</gadget>
<output>11_304</output>

<result>11_304</result>