Find the area of the triangle having vertices (2 -2) (4,2) (-1,3)
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Answer:
11
Explanation:
area of the triangle =1/2[x1(y2-y3) + x2(y3-y1) + x3(y1-y2)
=1/2[2(2-3) + 4(3+2) -1(-2-2) ]
=1/2[-2+20+4]
=1/2[22]
=11
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