The radius of the base of a cylinder is 1.5dm, and a square is obtained after unfolding its sides. What is the height of the cylinder in decimeters?
一个圆柱的底面半径是1.5dm，把它的侧面展开后得到一个正方形，这个圆柱的高是多少分米？
<gadget id="calculator">3.14 * 1.5 * 2</gadget>
<output>9.42</output>

<result>9.42</result>