Question

how to use herons formula for triangle having 2 side of length 6 cm

Answer 1

s = a + b + c / 2 here a, b, c are sides of triangle than use . √s(s-a) +s(s-b) +s(s-c)

Answer 2

herons formula=a+b+c
after that,
under root s*s+a*s+b*s+c
by using this formula, you get the answer