The ratio of the three sides of a triangle is 3:4:5, the longest side is 25 cm, how long is the shortest side in cm?
一个三角形三条边的比是3：4：5，最长的边25厘米，那最短的边长多少厘米？
<gadget id="calculator">25 / 5</gadget>
<output>5</output>

<gadget id="calculator">5 * 3</gadget>
<output>15</output>

<result>15</result>