There are two small sticks with lengths of 4cm and 8cm respectively, choose another small stick from below, and form a triangle with these two small sticks. What is your choice in cm
有两根长度分别是4cm和8cm的小棒，从下面再选一根小棒，与这两根小棒正好围成一个三角形．你的选择是多少cm
<result>5</result>