The characteristics of a triangle require that pr be between what 2 values when pq =12 and rq=19

When 2 triangle sides are known
The third side must be less than the sum of the other 2 sides and
the third side must be greater then the difference of the other 2 sides.

Sum of the 2 sides = 31
Difference of the other 2 sides = 7

So, the third side must be greater than 7 and less than 31

Source:
http://www.1728.org/trianinq.htm

This is what i found “an explicit formula designates the nth term of the sequence, as an expression of n (where n = the term's location). it defines the sequence as a formula in terms of n. this example is an arithmetic sequence(the same number, 5, is added to each term to get to the next term).” i hope this you for what your looking for. can you plz mark me brainliest?