If the side of a cylinder is expanded to be a square with a side length of 9.42 decimeters, what is the diameter of the base of the cylinder in decimeters?
一个圆柱侧面展开是一个边长为9.42分米的正方形，圆柱体底面直径是多少分米．
<gadget id="calculator">9.42 / 3.14</gadget>
<output>3</output>

<result>3</result>