Question

Determine if the following side lengths could form a triangle. Prove your answer with an inequality 3,3,7

Answer 1

According to the definition of triangle, the sum of two sides of a triangle must be greater than the third one.

In this case, the sum of 3 and 3 is 6 which is not greater than 7, it means that these length can't form a triangle:

`3+3<7`

That is the inequality that explains why they can form a triangle.