On a plan with a scale of (1/20000), the length of a lawn is 4cm and the width is 1.5cm. What is the actual area of the lawn in square meters?
在一张比例尺是(1/20000)的平面图上，量得一块草坪的长是4cm，宽是1.5cm，这块草坪的实际面积是多少平方米？
<gadget id="calculator">1 / 2_000</gadget>
<output>1/2_000 = around 0.0005</output>

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

<gadget id="calculator">1.5 / (1/2_000) / 100</gadget>
<output>30</output>

<gadget id="calculator">80 * 30</gadget>
<output>2_400</output>

<result>2_400</result>