Question
The figure is made up of 4 identical circles where Q, R, S and T are the centres of the circles. Each circle has a radius of 91 m. Find the area of the shaded region. (Take π = 227)
2 m

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The figure is made up of 4 identical circles where Q, R, S and T are the centres of the circles. Each circle has a radius of 91 m. Find the area of the shaded region. (Take π = 227)