If a rectangular lawn with a length of 4 cm and a width of 3 cm is drawn on a drawing with a scale of 1:2000, what is the actual area of the lawn in square meters?
如果在比例尺是1：2000的图纸上，画一个长为4厘米，宽为3厘米的长方形草坪图，这个草坪图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">3 / (1/2_000) / 100</gadget>
<output>60</output>

<gadget id="calculator">80 * 60</gadget>
<output>4_800</output>

<result>4_800</result>