Question

Which of the following could not be a value of n?13O A. 7B. 10C. 13O D. 222

Answer 1

The triangle inequality says that the sum of the the two shorter sides of a triangle must be greater than the third side.
So try and see which one of the options does not satisfy the triangle inequality.

Answer 2

N cannot be 22. It can be proved by the theory of triangle, the sum of any two sides of triangle must be greater than the another third side.