The circumference of a circular street garden is 25.12 meters, what is the radius of the garden in meters?
一个圆形街心花园的周长是25.12米，这个花园的半径是多少米．
<gadget id="calculator">2 * 3.14</gadget>
<output>6.28</output>

<gadget id="calculator">25.12 / 6.28</gadget>
<output>4</output>

<result>4</result>