Question

the ratio of the radii of two circles is 5:3. what is the ratio of their circumference?​

Answer 1

Answer:

ratio of raddii = 5 isto 3

ratio of cicumference = 2 pie r

= 2 pie × 5/ 2 pie 3

= 5/3

Answer 2

Step-by-step explanation:

let radius of first = 5x

second = 3x

Circumference of first = 2πr

= 2 π 5x = 10πx

circumference of second = 2πr

= 2π 3x = 6πx

so..ratio of their circumferences = first/second

10πx / 6πx

10/6

5/3 ... so

5:3 is the ratio of their circumferences as their radii....

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