The length of one side of an isosceles triangle is 5 cm, and the length of the base is 4 cm. What is the minimum length of rope needed to enclose this isosceles triangle?
一个等腰三角形的一条腰长5厘米，底边长4厘米，围成这个等腰三角形至少需要多少厘米的绳子．
<gadget id="calculator">5 * 2</gadget>
<output>10</output>

<gadget id="calculator">4 + 10</gadget>
<output>14</output>

<result>14</result>