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A rectangle OABC has the vertices O (0’ 0), A (2, 0), B (2, 3) and C (0, 3). O’A’B’C is the image of OABC under the translation given by#((0),(4))#. O”A”B”C” is the image of O’A’B’C’ under the transformation given by the matrix #((0,-1),(1,0))#. Draw the rectangles OABC, O’A’B’C’ and O”A”B”C” on the grid provided. Use your diagram to find the centre of rotation which maps OABC onto O”A”B”C”.