The answer is C because you can have a triangle with 5,9,n 5,10,n 9,10,n and 5,10,9
The reason why is because the sum of two sides is always larger than the value of the third side.
I hope that this helps.
Answer:the diagonal lengths are equal
Step-by-step explanation:
It would be (12,20) or (20,12) I don't know which one
