Cut out a circle with a radius of 20 cm on a rectangular wooden board with a length of 1.6 meters and a width of 1.2 meters. How many circles can be cut at most?
在长1.6米、宽1.2米的长方形木板上裁出半径为20厘米的圆，最多可以裁出多少个？
<gadget id="calculator">20 * 2</gadget>
<output>40</output>

<gadget id="calculator">160 / 40</gadget>
<output>4</output>

<gadget id="calculator">120 / 40</gadget>
<output>3</output>

<gadget id="calculator">4 * 3</gadget>
<output>12</output>

<result>12</result>