Draw a right triangle steel plate on the diagram with a scale of 1:200. The length of the two sides is 5.4 cm. The ratio of their lengths is 5:4. How many square meters is the actual area of the steel plate?
把一块直角三角形的钢板用1：200的比例尺画在图上，两条直角边一共长5.4厘米，它们长度的比是5：4．钢板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">5.4 / (1/200)</gadget>
<output>1_080</output>

<gadget id="calculator">5 + 4</gadget>
<output>9</output>

<gadget id="calculator">5 / 9</gadget>
<output>5/9 = around 0.555556</output>

<gadget id="calculator">(5/9) / 100</gadget>
<output>1/180 = around 0.005556</output>

<gadget id="calculator">4 / 9</gadget>
<output>4/9 = around 0.444444</output>

<gadget id="calculator">(4/9) / 100 / 2</gadget>
<output>1/450 = around 0.002222</output>

<gadget id="calculator">1_080 * (1/180) * 1_080 * (1/450)</gadget>
<output>72/5 = around 14.4</output>

<result>72/5 = around 14.4</result>