The scale of a plan is 1:5000. The length of a rectangular swimming pool is 2 cm and the width is 0.8 cm. How many square meters does this rectangular swimming pool actually occupy?
一张平面图的比例尺是1：5000，一个长方形游泳池在图上长是2厘米，宽是0.8厘米，这个长方形游泳池的实际占地面积是多少平方米？
<gadget id="calculator">1 / 5_000</gadget>
<output>1/5_000 = around 0.0002</output>

<gadget id="calculator">2 / (1/5_000) / 100</gadget>
<output>100</output>

<gadget id="calculator">0.8 / (1/5_000) / 100</gadget>
<output>40</output>

<gadget id="calculator">100 * 40</gadget>
<output>4_000</output>

<result>4_000</result>