A cuboid iron block whose length, width, and height are 9cm, 7cm, and 3cm respectively and a cube iron block whose edge length is 5cm are melted and cast into a cylinder. The radius of the bottom surface of this cylinder is 2cm. What is its height? centimeter?
把一个长、宽、高分别为9cm、7cm、3cm的长方体铁块和一块棱长是5厘米的正方体铁块熔铸成一个圆柱体，这个圆柱体的底面半径是2厘米，它的高是多少厘米？
<gadget id="calculator">9 * 7 * 3</gadget>
<output>189</output>

<gadget id="calculator">5 * 5 * 5</gadget>
<output>125</output>

<gadget id="calculator">189 + 125</gadget>
<output>314</output>

<gadget id="calculator">2 ** 2</gadget>
<output>4</output>

<gadget id="calculator">3.14 * 4</gadget>
<output>12.56</output>

<gadget id="calculator">314 / 12.56</gadget>
<output>25</output>

<result>25</result>