Question

if the difference between the semi-perimeter 's' and sides 'a' 'b' and 'c' of triangle ABC are 8cm,7cm and 6cm respectively. find the area of the triangle​

Answer 1

the difference between semi perimeter (s) and sides of a triangle are 8,7, and 6

which means 

(s-a) =8 

(s-b) = 7

(s-c) = 6

where a,b,c are the length of the sides of the triangle ABC

area of triangle formula 

$\sqrt{s(s-a)(s-b)(s-c)}$

$= \sqrt{s(8)(7)(6)}$

1. $= \sqrt{s(336)}$