Find the area of the quadrilateral with vertices are A(-3,-8), B(6, -6) C(4, 2) and D (-8,-2)
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answer
A=(-3,-8) B=(6,-6) C=(4,2) D=(-8,-2)
solution:
=1/2(18+12-8+64)-(-48-24-16+6)
=1/2(22+64)-(-82)
=1/2(86+82)
=1/2(168)
=84 sq.units
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