Cut the upper and lower circles of a cylinder with a diameter of 6 cm into several equal parts along the radius, and then assemble it with the figure unfolded on the side to form a rectangle. The area of this rectangle is 282.6 square centimeters. What is the height of the cylinder?
将一个直径6厘米的圆柱体的上下两个圆沿半径平均切成若干等份后，再与侧面展开的图形拼成一个长方形，这个长方形面积是282.6平方厘米，圆柱的高是多少
<gadget id="calculator">6 / 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">282.6 - 56.52</gadget>
<output>226.08</output>

<gadget id="calculator">3.14 * 6</gadget>
<output>18.84</output>

<gadget id="calculator">226.08 / 18.84</gadget>
<output>12</output>

<result>12</result>