A rectangle is drawn on a map with a length of 5 cm and a width of 3 cm according to 1:2000. What is the actual area of the rectangle in square meters?
一个长方形按1：2000画在地图上长5厘米，宽3厘米，这个长方形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">5 / (1/2_000) / 100</gadget>
<output>100</output>

<gadget id="calculator">3 / (1/2_000) / 100</gadget>
<output>60</output>

<gadget id="calculator">100 * 60</gadget>
<output>6_000</output>

<result>6_000</result>