The ratio of the radio of two circles is 3:2 . What is the ratio of their circumference?
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Ratio of radii = 3 : 2
So, let the radii of two circles be 3r and 2r respectively.
Let C1 and C2 be the circumferences of the two circles of radii 3r and 2r respectively.
C1 = 2π × 3r = 6πr
C2 = 2π × 2r = 4πr
According to the question,
=> 6πr÷4πr
=> 3÷2
Hence, C1 and C2 = 3÷2 = 3 : 2
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