The perimeter of the triangle is 216 cm, and the ratio of the lengths of the three sides is 3:4:5. By how many centimeters is the shortest side shorter than the longest side?
三角形的周长216厘米，三条边长度的比为3：4：5，最短的边比最长的边短多少厘米？
<gadget id="calculator">5 - 3</gadget>
<output>2</output>

<gadget id="calculator">3 + 4 + 5</gadget>
<output>12</output>

<gadget id="calculator">2 / 12</gadget>
<output>1/6 = around 0.166667</output>

<gadget id="calculator">216 * (1/6)</gadget>
<output>36</output>

<result>36</result>