If A(-5,7) B (-4,-5) C (-1, -6) and D (4,5) are sides of a quadrilateral, then what will be the area of ABCD?
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By joining B to D, you will get two triangles ABD and BCD. Now, the area of ΔABD So, the area of quadrilateral ABCD = 53 + 19 = 72
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Draw a graph
and measure side
then calculate
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