On the drawing with a scale of 1/1000, measure a rectangular piece of land with a length of 3 cm and a width of 1.8 cm. What is the actual area of the land in square meters?
在比例尺是千分之一的图纸上，量得一块长方形的地长3cm，宽1.8cm，这块地的实际面积是多少平方米．
<gadget id="calculator">1 / 1_000</gadget>
<output>1/1_000 = around 0.001</output>

<gadget id="calculator">3 / (1/1_000) / 100</gadget>
<output>30</output>

<gadget id="calculator">1.8 / (1/1_000) / 100</gadget>
<output>18</output>

<gadget id="calculator">30 * 18</gadget>
<output>540</output>

<result>540</result>