Xiaofang walked 4 times around a square land, a total of 3200 meters, how many hectares is the area of this land?
小芳围着一个正方形的土地走了4圈，一共3200米，这块地的面积是多少公顷？
<gadget id="calculator">3_200 / 4 / 4</gadget>
<output>200</output>

<gadget id="calculator">3_200 / 4 / 4 / 10_000</gadget>
<output>1/50 = around 0.02</output>

<gadget id="calculator">200 * (1/50)</gadget>
<output>4</output>

<result>4</result>