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Are you looking for this question from Catholic High SA 1 Paper 2 question 10 involving the area of rectangles and triangles?

Catholic High SA 1 Paper 2 question 10


Figure 1 shows a rectangle ABCD. It is folded along AC to form Figure A. The area of Figure 2 is 5/8 of the area of Figure 1. The area of the shaded part in Figure 2 IS 36 CM2. Find the area of rectangle ABCD.

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