On a drawing with a scale of (1/500), the length of a rectangular playground is 16 cm and the width is 10 cm. What is the actual area of the playground in square meters?
在比例尺是(1/500)的图纸上，量得一个长方形操场的长是16厘米，宽是10厘米，这个操场的实际面积是多少平方米．
<gadget id="calculator">1 / 500</gadget>
<output>1/500 = around 0.002</output>

<gadget id="calculator">16 / (1/500) / 100</gadget>
<output>80</output>

<gadget id="calculator">10 / (1/500) / 100</gadget>
<output>50</output>

<gadget id="calculator">80 * 50</gadget>
<output>4_000</output>

<result>4_000</result>