Question

Find the area of the triangle having vertices (2 -2) (4,2) (-1,3)

Answer 1

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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