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For Q26:

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25. Pls refer to the diagram below. Note that to have the same area , point D must be at the same horizontal level as point C and to be obtuse D must also be on the right side of point B.

26. If you take the above diagram separated by three layers, the first layer consists of 2 half rectangle perimeters, or 110cm. Same for third layer. For middle layer, it is also a full rectangle perimeter.

So Perimeter of the figure= 110 *3 cm= 330 cm

 

 

 

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