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1. How would you do this question. It says prove that the area of a triangle with side lengths a,b and c is given by the expression
√ (s(s-a)(s-b)(s-c)) where s=0.5(a+b+c)
Isn't area=.5 x base x height.
2. (Original post by Ano9901whichone)
How would you do this question. It says prove that the area of a triangle with side lengths a,b and c is given by the expression
√ (s(s-a)(s-b)(s-c)) where s=0.5(a+b+c)
Isn't area=.5 x base x height.
This is Heron's formula of which I can think of atleast 3 ways of deriving. (1/2ab is for right angled only). This is probably one of the simpler ways: http://jwilson.coe.uga.edu/emt725/He...nProofAlg.html

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