Draw a rectangular vegetable field with a length of 80 meters and a width of 60 meters on a drawing with a scale of 1:2000. What is the area on the drawing?
把一块长80米、宽60米的长方形菜地画在比例尺是1：2000的图纸上，图上面积是多少．
<gadget id="calculator">1 / 2_000</gadget>
<output>1/2_000 = around 0.0005</output>

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

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

<gadget id="calculator">4 * 3</gadget>
<output>12</output>

<result>12</result>