The perimeter of a square orchard is 4800 meters, what is the area of the orchard in hectares?
一个正方形果园的周长是4800米，这个果园的占地面积是多少公顷？
<gadget id="calculator">4_800 / 4</gadget>
<output>1_200</output>

<gadget id="calculator">4_800 / 4 / 10_000</gadget>
<output>3/25 = around 0.12</output>

<gadget id="calculator">1_200 * (3/25)</gadget>
<output>144</output>

<result>144</result>