The upper base of a right-angled trapezoid is 6 cm, the lower base is 12 cm, and the height is 6 cm. What is the volume of the obtained rotating body when it rotates once at high altitude?
一个直角梯形的上底是6cm，下底是12cm，高6cm．以高旋转一周，得到的旋转体的体积是多少？
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">12 ** 2</gadget>
<output>144</output>

<gadget id="calculator">6 ** 2</gadget>
<output>36</output>

<gadget id="calculator">12 * 6</gadget>
<output>72</output>

<gadget id="calculator">144 + 36 + 72</gadget>
<output>252</output>

<gadget id="calculator">(1/3) * 3.14 * 6 * 252</gadget>
<output>1_582.56</output>

<result>1_582.56</result>