Q13 of 59 Page 122

Areas of two circles are equal. Is it necessary that their circumferences are equal? Why?

True

We are given that


Area of circle with radius R1 = Area of circle with radius R2


⇒ π(R1)2 = π(R2)2


⇒ R1= R2


⇒ 2πR1= 2πR2, and hence the circumferences are also equal.


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