Question

the ratio of the radius of 2 circles is 2:3. find the ratio of their areas​

Answer 1

Answer:

4:9

Step-by-step explanation:

let the radii are 2x and 3x

area 1 :area 2

= pi*(2x)^2 : pi*(3x)^2

= 4x^2 : 9x^2

= 4:9

Answer 2

Answer:

hlo

your answer is here !

Step-by-step explanation:

Hi ,

Let r , R are radii of two circles ,

ratio of radii = 2 : 3

r /R = 2 / 3

ratio of their circumference = ( 2πr ) / ( 2πR )

= r / R

= 2 / 3

= 2 : 3

I hope this helps you.

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