Question

question based on the given lengths, determine whether the segments can form a triangle. drag each set of side lengths to the correct location on the table. can form a triangle cant form a triangle 3, 4, 9 7, 5, 12 7, 8, 9 2, 4, 7 4, 6, 8 3, 7, 11 3, 6, 7 6, 8, 11

Explanation:

Step1: 依据三角形三边关系

任意两边之和大于第三边，两边之差小于第三边判断。

Step2: 逐一判断

3 + 4 < 9等不满足，7 + 8 > 9等满足。

Answer:

Can Form a Triangle: 7, 8, 9; 4, 6, 8; 3, 6, 7; 6, 8, 11
Can't Form a Triangle: 3, 4, 9; 7, 5, 12; 2, 4, 7; 3, 7, 11