Question
The figure shows four rectangles R, S, T and U not drawn to scale. The areas of rectangles R, S and T are 42 cm2, 48 cm2 and 35 cm2 respectively. What is the area of rectangle U?
4 m

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The figure shows four rectangles R, S, T and U not drawn to scale. The areas of rectangles R, S and T are 42 cm2, 48 cm2 and 35 cm2 respectively. What is the area of rectangle U?