find the area of triangle with vertices at the points (a,b+c) , (b,c+a)and (c,a+b)
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Formula of area of triangle is:half ×base×height
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area of triangle with vertices are (a,b+c),(b,c+a),(c,a+b) is
Area= 1/2|a(c-b)+b(a-c)+c(b-a)|
= 1/2|ac-ab+ab-bc+bc-ac|
=1/2|0|
= 0
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