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Find the size of a matrix.

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Determine the sizes of the following matrices.

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The size of a matrix is given as \\(m\\times n\\), where \\(m\\) is the number of rows and \\(n\\) is the number of columns. You can see the correct answers given above.

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Matrix \\(\\var{A}\\) has size [[0]]\\(\\times\\)[[1]].

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Matrix \\(\\var{B}\\) has size [[0]]\\(\\times\\)[[1]].

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Matrix \\(\\var{C}\\) has size [[0]]\\(\\times\\)[[1]].

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Matrix \\(\\var{D}\\) has size [[0]]\\(\\times\\)[[1]].

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