Question
The diagram shows a rectangle LMPJ, which is made up of square LMNK and rectangle KNPJ. Figure Q, R and S are squares and the area of square S is 1 cm2. The area of square Q is 23 of the shaded area in rectangle KNPJ and KT = TN. Find the unshaded area of rectangle KNPJ.
4 m

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The diagram shows a rectangle LMPJ, which is made up of square LMNK and rectangle KNPJ. Figure Q, R and S are squares and the area of square S is 1 cm2. The area of square Q is 23 of the shaded area in rectangle KNPJ and KT = TN. Find the unshaded area of rectangle KNPJ.