There is a circular flower garden with a circumference of 25.12 meters in the school. Draw it on a drawing with a scale of (1/200), how many centimeters should the radius be drawn.
学校有一个周长是25.12米的圆形花圃，把它画在比例尺是(1/200)的图纸上，半径应画多少厘米．
<gadget id="calculator">2 * 3.14</gadget>
<output>6.28</output>

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

<gadget id="calculator">1 / 200</gadget>
<output>1/200 = around 0.005</output>

<gadget id="calculator">4 * 100 * (1/200)</gadget>
<output>2</output>

<result>2</result>