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I know that for a scalene triangles a = , b = and c = . From this find out of the scalene triangles.

 
 
SolutionScalene Triangle FormulaArea Formula
Area of Scalene Triangle
Perimeter `(P) = a+b+c`
`S = P/2 = (a+b+c)/2`
Area `(A) = sqrt(S (S - a) (S - b) (S - c))`

Example :
I know that for a scalene triangles a = 3 , b = 4 and c = 5 . From this find out Area of the scalene triangles.

`"Here " a=3, b=4, c=5" (Given)"`


`"We know that,"`

`"Perimeter" = a + b + c`

` = 3 + 4 + 5`

` = 12`

` `

`"Semi-Perimeter" = s = (a + b + c)/2`

` = 12/2`

` = 6`


`"Here " a=3, b=4, c=5" and semi-Perimeter" = 6`

`"We know that,"`

`"Area" = sqrt(s (s - a) (s - b) (s - c))`

` = sqrt(6 (6 - 3) (6 - 4) (6 - 5))`

` = 6`


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