Question

what is the formula of heron's
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Answer 1

hope it helps you........

Answer 2

Good evening

to Find the Area Using Heron’s Formula

The first step is to find the value of the semi-perimeter of the given triangle.  

S = (a+b+c)/2

The second step is to use Heron’s formula

Area=√s(s−a)(s−b)(s−c)

  Let take an example'

A triangle PQR has sides 4 cm, 13 cm and 15 cm.

Semiperimeter of triangle PQR,

s = (4+13+15)/2 = 32/2 = 16

By heron’s formula,

A = √[s(s-a)(s-b)(s-c)]

Hence, A = √[16(16-4)(16-13)(16-15)]

= √(16 x 12 x 3 x 1)

= √576

= 24 sq.cm

Hope this answer help you.