Question
The diagram shows a rectangle BCEZ, which is made up of square BCDA and rectangle ADEZ. Figure F, G and H are squares and the area of square H is 9 cm2. The area of square F is 23 of the shaded area in rectangle ADEZ and AJ = JD. Find the unshaded area of rectangle ADEZ.
4 m

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The diagram shows a rectangle BCEZ, which is made up of square BCDA and rectangle ADEZ. Figure F, G and H are squares and the area of square H is 9 cm2. The area of square F is 23 of the shaded area in rectangle ADEZ and AJ = JD. Find the unshaded area of rectangle ADEZ.