Question

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6. Show that points A(-4,-7), B(-1, 2), C(8,5)
and D(5,-4) are vertices of a rhombus ABCD. . find it's area

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Answer 1

AC= √(8+4)^2+(5+7)^2= 16.97

BD= √(5+1)^2+(-4-2)^2= 8.49

Rhombus area = (16.97+8.49)/2= 12.72