A cylinder has a surface area of 75.36 square centimeters and a base diameter of 4 centimeters, what is its height in centimeters?
一个圆柱体的表面积是75.36平方厘米，底面直径是4厘米，它的高是多少厘米？
<gadget id="calculator">4 / 2</gadget>
<output>2</output>

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

<gadget id="calculator">3.14 * 4 * 2</gadget>
<output>25.12</output>

<gadget id="calculator">75.36 - 25.12</gadget>
<output>50.24</output>

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

<gadget id="calculator">50.24 / 12.56</gadget>
<output>4</output>

<result>4</result>