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A rod 28 centimetres long is to be bent ...

A rod 28 centimetres long is to be bent to make a rectangle.
i) Can a rectangle of diagonal 8 centimetres be made?
ii) Can a rectangle of diagonal 10 centimetres be made?
iii) How about a rectangle of diagonal 14 centimetres?
Calculate the lengths of the sides of the rectangles that cán be made.

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