Answer :
Herons formula gives the area of a triangle when the lengths of three sides of a triangle are given.
Let the sides of the triangle are a, b and c. Let s be half the perimeter or
[tex]s = \frac{a+b+c}{2} [/tex]
Then area of the triangle is given by
[tex]A= \sqrt{s(s-a)(s-b)(s-c)} [/tex]
Let the sides of the triangle are a, b and c. Let s be half the perimeter or
[tex]s = \frac{a+b+c}{2} [/tex]
Then area of the triangle is given by
[tex]A= \sqrt{s(s-a)(s-b)(s-c)} [/tex]
the whole square root of - s(s-a)(s-b)(s-c)
where a,b,c are sides of triangle and s is the semiperimeter - s=a+b+c whole divided by2