If the sides of an isosceles triangle are 4 cm and 2 cm long, what is the perimeter of the triangle?
等腰三角形的两边长分别为4厘米和2厘米，则这个三角形的周长是多少厘米
<gadget id="calculator">4 + 4 + 2</gadget>
<output>10</output>

<result>10</result>