calculate the area of the triangle whose vertices are (1 4)(4.-3) and (-9,7)​

2 thoughts on “calculate the area of the triangle whose vertices are (1 4)(4.-3) and (-9,7)​”

1. Answer:

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2. Answer

   Given (1,−1),(−4,6),(−3,−5)

   Let us Assume A(x1,y1)=(1,−1)

   Let us Assume B(x2,y2)=(−4,6)

   Let us Assume C(x3,y3)=(−3,−5)

   Area of triangle

   =21[x1(y2−y3)+x2(y3−y1)+x3(y1−y2)]

   Now, Area of given triangle

   =21[{1(6−(−5))}+(−4){(−5+1)−3(−1−6)}]

   =21{30+16+21}

   =267 Square units

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