Wang Gang's average step length is about 64 cm, and he walked a total of 200 steps along the square activity field. Could you please calculate how many square meters the event venue is?
王刚的平均步长约64厘米，他沿着正方形活动场地走了一圈共200步．请你算出活动场地约多少平方米？
<gadget id="calculator">200 / 4 / 100</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">64 * (1/2) * 64 * (1/2)</gadget>
<output>1_024</output>

<result>1_024</result>