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The sum of radii of two circles is 140 cm and the difference of their circumference is 88 cm find the ratio between their areas

The sum of radii of two circles is 140 cm and the difference of their circumference is 88 cm find the ratio between their areas

Grade:10

1 Answers

Sandeep Bhamoo
443 Points
3 years ago
R1+R2 = 140, 2π(R1-R2)=88. R1-R2=14 on dolving both equation R1=77, R2=63. Ratio of area= R1²/R2²= (77/63)²= 121/81. Pleae do approve my answer if correct

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