Question

1) If the ratio of the diameter of two circles is 2:5, then the ratio of their
circumferences is *If the ratio of the diameter of two circles is 2:5, then the ratio of their
circumferences is *​

Answer 1

Answer:

2:5

Step-by-step explanation:

let the no.be x

2x:5x

D1=2x

D2=5x

R1=2x/2=x

R2=5x/2=5x/2

Circumference of one circle=2*22/7*x=44x/7

Circumference of another circle=2*22/7*5x/2=110/7

44

Therefore,ratio of their circumferences is=44x/7/110x/7

44x/7*7/110x

2/5

2:5