A rectangular playground has a perimeter of 152 meters and a ratio of length to width of 10:9. What is the area of this playground?
一个长方形操场，周长是152米，长与宽的比是10：9．这块操场的面积是多少？
<gadget id="calculator">152 / 2</gadget>
<output>76</output>

<gadget id="calculator">10 + 9</gadget>
<output>19</output>

<gadget id="calculator">10 / 19</gadget>
<output>10/19 = around 0.526316</output>

<gadget id="calculator">76 * (10/19)</gadget>
<output>40</output>

<gadget id="calculator">9 / 19</gadget>
<output>9/19 = around 0.473684</output>

<gadget id="calculator">76 * (9/19)</gadget>
<output>36</output>

<gadget id="calculator">40 * 36</gadget>
<output>1_440</output>

<result>1_440</result>