the radii of two circles are in the ratio 3:5 find the ratio between their circumferences . with written explanation (explain how 16 and 10 came )
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Answer:
let , first circle radius=3x
second ....... =5x
1st circle circumference = 2π×3x = 6πx
2nd ......... =2π×5x =10πx
ratio of circumference=6πx:10πx =6:10
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Step-by-step explanation:
you wrote a little wrong ....ratio will be 6:10 ... review it and i am pretty sure i am right
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Step-by-step explanation:
ratio of radii r:R=3:5
r= 3a
R=5a
ratio of circumstances= 2πr : 2πR
= 2π x 3a:2π X 5a
= 2 X 3 : 2 X 5
= 6: 10
=3:5
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