can the side lengths of a triangle be 3 ,6,9?
1 answer
No, the side lengths of a triangle must satisfy the triangle inequality theorem, which states that the sum of the lengths of any two sides of a triangle must be greater than the length of the third side. In this case, 3 + 6 is not greater than 9. Therefore, a triangle with side lengths 3, 6, and 9 cannot exist.