If a cube with a side length of 3 decimeters is cut into the largest cylinder, what is the surface area of the cylinder in square decimeters?
如果把一块棱长是3分米的正方体木块削成一个最大的圆柱，这个圆柱的表面积是多少平方分米．
<gadget id="calculator">3 / 2</gadget>
<output>3/2 = around 1.5</output>

<gadget id="calculator">(3/2) ** 2</gadget>
<output>9/4 = around 2.25</output>

<gadget id="calculator">3.14 * (9/4) * 2</gadget>
<output>14.13</output>

<gadget id="calculator">3.14 * 3 * 3</gadget>
<output>28.26</output>

<gadget id="calculator">14.13 + 28.26</gadget>
<output>42.39</output>

<result>42.39</result>