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What will be the ratio of the radius of two circle when the ratio of their area is 4:9 |
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Answer» Answer: 2:3 Step-by-step EXPLANATION: Ratio of the AREAS of two circles=4:9 Area of circle=πr² Let the radius of circle 1 be y. Let the radius of circle 2 be n. Therefore, πy²/πn²=4/9. ( π got DIVIDED.) y²/n²=4/9 (√y²/n²)=(√4/9). (Both SIDES under root). y/n=2/3. Thus, ratio =2:3. |
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