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16. Find the area enclosed between two concentric circlesof radii 3. 5 cm and 7 cm. A third concentric circleis drawn outside the 7 cm circle so that the areaenclosed between it and the 7 cm circle is the sameas that between the two inner circles. Find the radiusof the third circle, correct to one decimal place.Take Ď =(ICSE)17 4niuo |
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Answer» thanks.... |
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