find the area of the shaded region in the figure given, there are four equal quadrilaterals of circle each of radius 3.5 cm, their centres being P, Q, R and S
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side of square =3.5+3.5=7
ar.square -4×area of quadrant = area of shaded region
7×7-4×1÷4×22÷7 ×3.5×3.5
49-22÷7×12.5
49 - 3.14 × 12.5
49 - 39.2857143
9.7142857 cm2 = area of shaded region
ar.square -4×area of quadrant = area of shaded region
7×7-4×1÷4×22÷7 ×3.5×3.5
49-22÷7×12.5
49 - 3.14 × 12.5
49 - 39.2857143
9.7142857 cm2 = area of shaded region
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