A cylinder whose lateral area is 37.68 square centimeters and whose height is 2 centimeters, find the volume of a straight cone with the same base and height as the cylinder.
一个圆柱体，它的侧面积是37.68平方厘米，高是2厘米，求与这个圆柱体等底等高直圆锥的体积．
<gadget id="calculator">37.68 / 2 / 3.14 / 2</gadget>
<output>3</output>

<gadget id="calculator">3 ** 2</gadget>
<output>9</output>

<gadget id="calculator">3.14 * 9 * 2</gadget>
<output>56.52</output>

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

<gadget id="calculator">56.52 * (1/3)</gadget>
<output>18.84</output>

<result>18.84</result>