Question

the sides of a traingle are 12 cm, 35 cm, 37 cm. find its area

Answer 1

we can solve it by heron's formula
       
   A= s(s-a)(s-b)(s-c)    { this is in under root }    
       and we get "s" from a+b+c/2
                                 from applying this we get answer 168 .