There is a conical garbage dump with a bottom diameter of 8 meters and a height of 4.5 meters. If the garbage is spread on the ground with a thickness of about 2 cm, how many square meters of land will be polluted.
有一个圆锥形垃圾堆，底面直径8米，高4.5米．如果把这个垃圾平铺在地面上，厚约2厘米，就污染了多少平方米的土地．
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">8 / 2</gadget>
<output>4</output>

<gadget id="calculator">4 ** 2</gadget>
<output>16</output>

<gadget id="calculator">(1/3) * 3.14 * 16 * 4.5</gadget>
<output>75.36</output>

<gadget id="calculator">75.36 / 0.02</gadget>
<output>3_768</output>

<result>3_768</result>