Answer:
The third side should be more than 7 and less than 17
Explanation:
Sum of lengths any 2 sides of a triangle should be greater than the length of the third side. Here lengths of 2 sides of a triangle are given. So,
5 + 12 > Length of third side
=> 17 > Length of third side
or
=> Length of third side < 17
Let's assume that the side with 12 as length be the longest side of the triangle. So,
5 + length of the third side > 12
(or)
12 < 5 + length of the third side
Here if we gonna add 7 , then it will be equal to 12 . So the length of the third side should be more than 7 .