(5,2),(4,7)and(7,-4) area of triangle
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Answer:
A = -4units
Step-by-step explanation:
A = [x1(y2−y3)+x2(y3−y1)+x3(y1−y2)]
= [5(7+4) + 4(-4-2) + 7(2-7)]
= (5(11) + 4(-6) + 7(-5) )
= 55-24 -35 = -4
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