Use 8-meter-long bamboo mats to form a round-bottomed grain storage. It is known that the overlap between the two ends occupies 0.464 meters. How many square meters does this grain storage occupy?
用8米长的竹席围成一个底是圆形的粮囤，已知两头相接重合处占去0.464米，这个粮囤的占地面积是多少平方米？
<gadget id="calculator">8 - 0.464</gadget>
<output>7.536</output>

<gadget id="calculator">7.536 / 3.14 / 2</gadget>
<output>1.2</output>

<gadget id="calculator">1.2 ** 2</gadget>
<output>1.44</output>

<gadget id="calculator">3.14 * 1.44</gadget>
<output>4.5216</output>

<result>4.5216</result>