conical block with a base diameter of 18 cm is divided into two blocks of the same shape and size, and the surface area increases by 54 cm2 compared to the original one. Find the volume of the cone.
一个底面直径是18厘米的圆锥形木块，将其分成形状、大小完全相同的两个木块后，表面积比原来增加了54平方厘米，求这个圆锥的体积．
<gadget id="calculator">54 / 2</gadget>
<output>27</output>

<gadget id="calculator">2 / 18</gadget>
<output>1/9 = around 0.111111</output>

<gadget id="calculator">27 * (1/9)</gadget>
<output>3</output>

<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">18 / 2</gadget>
<output>9</output>

<gadget id="calculator">9 ** 2</gadget>
<output>81</output>

<gadget id="calculator">(1/3) * 3.14 * 81 * 3</gadget>
<output>254.34</output>

<result>254.34</result>