To draw a circle with a circumference of 9.42 cm, what is its radius in decimeters?
要画一个周长是9.42cm的圆，它的半径是多少分米．
<gadget id="calculator">9.42 / 3.14 / 2 / 10</gadget>
<output>0.15</output>

<result>0.15</result>