Asked by mansi
The ratio of the radii of two circles is 2:3. Find the ratio of their circumference and the ratio of their areas
Answers
Answered by
Steve
since C = 2piR
the ratio of circumferences is the same as the ratio of the radii.
That is, if we substitute kR for R, we get
2pi(kR) = k*2piR = kC
the ratio of circumferences is the same as the ratio of the radii.
That is, if we substitute kR for R, we get
2pi(kR) = k*2piR = kC
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