A rectangular garden has a perimeter of 240 meters and a width of 45 meters. How many square meters is the garden area?
一个长方形的花圃的周长是240米，宽是45米．花圃的面积是多少平方米？
<gadget id="calculator">240 / 2</gadget>
<output>120</output>

<gadget id="calculator">120 - 45</gadget>
<output>75</output>

<gadget id="calculator">75 * 45</gadget>
<output>3_375</output>

<result>3_375</result>