Question
The figure shows four rectangles N, P, Q and R not drawn to scale. The areas of rectangles N, P and Q are 30 cm2, 40 cm2 and 24 cm2 respectively. What is the area of rectangle R?
4 m

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The figure shows four rectangles N, P, Q and R not drawn to scale. The areas of rectangles N, P and Q are 30 cm2, 40 cm2 and 24 cm2 respectively. What is the area of rectangle R?