Q. 164.3( 3 Votes )
The areas of two
Ratio of areas of two circles = 2:3
Let the two circles be C1 and C2 with radii ‘r1’ and ‘r2’.
∵ Area of circle = πr2
∴ Area of C1 = πr12
and Area of C2 = πr22
Taking square root on both sides, we get
Multiplying and dividing L.H.S. by ‘π’, we get
Multiplying and dividing L.H.S. by ‘2’, we get
As Circumference of circle = 2πr
Hence, the ratio between the circumferences of C1 and C2 is 2:3.
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