The diagram shows points $$\(A, B\)$$ and $$\(C\)$$ on a square grid. (a) Write down the coordinates of $$\(C\)$$. (1) (b) Measure the length of $$\(B C\)$$. Give your answer in centimetres. $$\(\mathrm{cm}\)$$ (1) (c) On the grid, mark with a cross $$\((X)\)$$ the point $$\(D\)$$ so that $$\(A B C D\)$$ is a parallelogram. Label this point $$\(D\)$$. (1)

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