Question

दो वृतो के क्षेत्रफल में अनुपात 4:9 हैं तो इनके त्रिज्याओ में अनुपात क्या होगा ​

Answer 1

let the radius of 1st circle is r1 and second radius is re

then,

πr1^2/πr2^2 = 4/9

r1^2/r2^2=4/9

r1/r2=√(4/9)=2/3

hence, ratio of their radius is 2:3

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