Question

find area of triangle formed by the point (5,2) (4,7) and (7,-4)

Answer 1

$6 \div 2(1 + 2) =$

Answer 2

by putting the formulas of area of ∆=1/2[X1(Y2-Y3)+X2(Y3-Y2)+X3(Y1-Y2)] answer become -2 you know ar∆ never negative so answer become 2.
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