the ratio of radii of two circles is 2:5 the ratio of their circumference is 5:2
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Answer:
Step-by-step explanation:
Let the larger radii be R units
And the smaller radii be r units
So, r:R = 2:5 (given)
As circumference = 2π*radius
So, circumference of larger circle = 2πR
And circumference of smaller circle = 2πr
Ratio, 2πr:2πR = r:R = 2:5
That means, the ratio of circumference will be simply the ratio of their respective radii.
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