The lateral expansion of a cylinder is a square with a side length of 9.42 decimeters. What is the diameter of the base of the cylinder in decimeters?
一个圆柱体的侧面展开是一个边长9.42分米的正方形，这个圆柱体的底面直径是多少分米
<gadget id="calculator">9.42 / 3.14</gadget>
<output>3</output>

<result>3</result>