Question
The diagram shows a rectangle QRTN, which is made up of square QRSP and rectangle PSTN. Figure U, V and W are squares and the area of square W is 4 cm2. The area of square U is 23 of the shaded area in rectangle PSTN and PX = XS. Find the unshaded area of rectangle PSTN.
4 m

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The diagram shows a rectangle QRTN, which is made up of square QRSP and rectangle PSTN. Figure U, V and W are squares and the area of square W is 4 cm2. The area of square U is 23 of the shaded area in rectangle PSTN and PX = XS. Find the unshaded area of rectangle PSTN.