Dig a rectangular foundation on a construction site, draw it on a plan with a scale of 1:2000, the length is 6 cm, and the width is 4 cm. What is the area of the foundation?
某建筑工地挖一个长方形的地基，把它画在比例尺是1：2000的平面图上，长是6厘米，宽是4厘米，这块地基的面积是多少？
<gadget id="calculator">1 / 2_000</gadget>
<output>1/2_000 = around 0.0005</output>

<gadget id="calculator">6 / (1/2_000) / 100</gadget>
<output>120</output>

<gadget id="calculator">4 / (1/2_000) / 100</gadget>
<output>80</output>

<gadget id="calculator">120 * 80</gadget>
<output>9_600</output>

<result>9_600</result>