The side area of the cylinder is 18.84 square meters and the height is 3 meters. What is the area of its base in square meters?
圆柱的侧面积是18.84平方米，高是3米，它的底面积是多少平方米．
<gadget id="calculator">18.84 / 3 / 3.14 / 2</gadget>
<output>1</output>

<gadget id="calculator">1 ** 2</gadget>
<output>1</output>

<gadget id="calculator">3.14 * 1</gadget>
<output>3.14</output>

<result>3.14</result>