Https://www.prepswift.com/quizzes/quiz/prepswift-possible-side-lengths-of-triangle

[nabinmaharjan1010]

I didn’t understand the solution of this question.

[cylverixxx]

What part do you not get?

[user3432]

use this formula: the difference of any tow side<third side<the sum of any two sides

so 4-3<x<4+3
=1<x<7
=a<x<b

so b-a is 6.