As shown in the figure, the length of the base AB of the triangle is 9 cm, and the height above the base AB is 5 cm. What is the volume of the three-dimensional figure formed by rotating around AB for one revolution? (Pi is taken as π)
如图三角形的底边AB长9厘米，底边AB上的高是5厘米，以AB为轴旋转一周所形成立体图形的体积是多少立方厘米？(圆周率取π)
<gadget id="calculator">3 * 25</gadget>
<output>75</output>

<result>75</result>