Question

If p,q and r lengths of a triangle then S =​

Answer 1

Answer:

Sum of any two sides of a triangle should be greater than the third side. Difference of any two sides of a triangle should be less than the third side. If p, q and r are the lengths of three sides of a triangle.

Step-by-step explanation:

Hope this will help you

Answer 2

Step-by-step explanation:

If S is the semiperimeter then ,

$s = \frac{p + q + r}{2}$