ABCD is a rectangle whose three vertices are B(4, 0), C(4, 3) and D(0, 3). The length of one of its diagonals is ______.

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ABCD is a rectangle whose three vertices are B(4, 0), C(4, 3) and D(0, 3). The length of one of its diagonals is 5. Explanation: BD = \sqrt{\left( 0 - 4 \right)^2 + \left( 3 - 0 \right)^2} = $\sqrt$(4^2 + 3^2) = $\sqrt$(25) = 5 \text{ units }

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