On the school floor plan with a scale of (1/200), the measured length of the classroom is 4 cm, and the width is 3 cm. What is the actual area of the classroom in square meters?
在比例尺是(1/200)的学校平面图上，量得教室的长是4厘米，宽是3厘米．教室的实际面积是多少平方米．
<gadget id="calculator">1 / 200</gadget>
<output>1/200 = around 0.005</output>

<gadget id="calculator">4 / (1/200) / 100</gadget>
<output>8</output>

<gadget id="calculator">3 / (1/200) / 100</gadget>
<output>6</output>

<gadget id="calculator">8 * 6</gadget>
<output>48</output>

<result>48</result>