A cylinder whose base diameter is 3 centimeters has a side profile that is a square, what is the height of the cylinder in centimeters?
一个底面直径是3厘米的圆柱，它的侧面展开图是一个正方形，这个圆柱的高是多少厘米．
<gadget id="calculator">3.14 * 3</gadget>
<output>9.42</output>

<result>9.42</result>