If the two adjacent sides of an isosceles triangle are 3 cm and 8 cm respectively, what is the perimeter of the isosceles triangle in cm?
一个等腰三角形相邻两条边分别是3厘米和8厘米，这个等腰三角形的周长是多少厘米．
<gadget id="calculator">8 + 8 + 3</gadget>
<output>19</output>

<result>19</result>