In Xisha Village, there is a rectangular nursery with a length of 140 meters and a width of 60 meters; there is also a square flower garden with a side length of 90 meters. Compared with the flower garden and the nursery, which one is larger? How many square meters is it?
西沙村有一个长方形苗圃，长140米，宽60米；还有一个正方形花圃，边长90米．花圃与苗圃比，哪一个面积大？大多少平方米？
<gadget id="calculator">140 * 60</gadget>
<output>8_400</output>

<gadget id="calculator">90 * 90</gadget>
<output>8_100</output>

<gadget id="calculator">8_400 - 8_100</gadget>
<output>300</output>

<result>300</result>