The height of a cylinder is 9.42 cm, and its side is a square. What is the diameter of its base in cm?
一个圆柱的高是9.42厘米，侧面展开是一个正方形，它的底面直径是多少厘米．
<gadget id="calculator">9.42 / 3.14</gadget>
<output>3</output>

<result>3</result>