Question

what is heron's formula ?​

Answer 1

In geometry, Heron's formula (sometimes called Hero's formula), named after Hero of Alexandria,[1] gives the area of a triangle when the length of all three sides are known. Unlike other triangle area formulae, there is no need to calculate angles or other distances in the triangle first.

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Answer 2

Answer:  The Herons formula is a formula developed by a guy called " Hero of Alexandria".

The formula helps us to find the area of triangle when all the sides are given. The formula goes like this:-

area = $\sqrt{s(s-a)(s-b)(s-c)}$    

a, b & c are the 3 sides of the triangle.

s =  semi perimeter or $\frac{a+b+c}{2}$