Use three small sticks to form a triangle, and the length of two small sticks is 40 cm and 50 cm, so how many centimeters can the length of the third small stick be selected
用三根小棒围成三角形，其中两根小棒的长度是40厘米、50厘米，那么第三根小棒的长度只能选多少厘米
<result>80</result>