Math, asked by apoorvavishwasr8679, 1 year ago

The ratio of the radii of two circles is 4:5.find the ratio of their circumfrences.

Answers

Answered by gaurav2013c
4
Let the radii of circles be R1 and R2

According to question
R1 : R2 = 4:5
R1/R2 = 4/5 --------------(1)

Now, C1 : C2 = 2 pi *R1/2 pi *R2
C1:C2 = R1 / R2
C1:C2 = 4:5 (from equation 1)


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