A conical wheat pile has a base radius of 2 meters and a height of 1.8 meters. If the wheat is packed into a cylindrical grain storehouse with a height of 4 meters, what is the area of the bottom of the cylinder in square centimeters?
一个圆锥形麦堆，底面半径长2米，高1.8米．如果将这些麦子装入一个高为4米的圆柱形粮囤里正好装满，这个圆柱的底面积是多少平方厘米？
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">(1/3) * 3.14 * 1.8</gadget>
<output>1.884</output>

<result>1.884</result>