Semi-perimeter, s of a triangle with sides a, b and c is ______ units.
2 (a + b + c)
abc
(a + b + c) / 2
a + b + c
The area of a triangle, with sides a, b, c and semi-perimeter s, is:
Suppose p denotes the perimeter of a triangle with sides a, b and c and s is the semi perimeter. If A denotes the area of the triangle, √p(p−2a)(p−2b)(p−2c)A = __.
In a triangle with sides a, b and c, let s be the semi perimeter and p be the perimeter. Find the value of ps ___.