Five marks exercise problems XIII — task. Mathematics State Board, Class 9.

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Verify that the following points taken in order form the vertices of a rhombus.

\(A(3, -2)\), \(B(7, 6)\), \(C(-1, 2)\), \(D(-5, -6)\)

AB = i \sqrt{i}

BC = i \sqrt{i}

CD = i \sqrt{i}

DA = i \sqrt{i}

\(ABCD\) is .

Did you find an error?

27. Five marks exercise problems XIII