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Mathematics 13 Online
OpenStudy (anonymous):

There is rectangle ABCD. The point A is (0, -2). The diagonal BD is parallel to the x-axis. a) Explain why the y-coordinate of D is 6. b) The x-coordinate of D is h. Express the gradients of AD and CD in the terms of h. c) Calculate the x-coordinate of D and B. d) Calculate the area of the rectangle ABCD.

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