Is ABCD is a parallelogram? — task. Mathematics State Board, Class 10.

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Prove that \(ABCD\) is a parallelogram with points \(A(2, 2)\), \(B(4, 6)\), \(C(7, 8)\) and \(D(5, 4)\).

The slope of \(AB\) \(=\)

i

The slope of \(BC\) \(=\)

\frac{i}{i}

The slope of \(CD\) \(=\)

i

The slope of \(DA\) \(=\)

\frac{i}{i}

\(ABCD\) is a .

Did you find an error?

14. Is ABCD is a parallelogram?