Question

If the circumference of two circles are in the ratio 7 ratio 10 find the ratio between their radii.

Answer 1

Answer:

7:10

Step-by-step explanation:

let r1 be the radius of the smaller circle

let r2 be the radius of the bigger circle

=> 7/10 =

$2\pi r1\div 2\pi r2$

=> 7/10 = r1/r2

=> 7r2 = 10r1

=> r2/r1 = 10/7

=> r1/r2 = 7/10

= 7:10

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