The ratio of circumference of two circles is 4:9. Find the ratio of their area.
Answers
Answered by
70
let the radius of two circles be r and R
2πr/ 2πR =4:9
r/R = 4:9
area of the circle = π× radius×radius
area of circle1/ area of circle 2=
πr^2/πR^2
=r^2/R^2
=16/81
2πr/ 2πR =4:9
r/R = 4:9
area of the circle = π× radius×radius
area of circle1/ area of circle 2=
πr^2/πR^2
=r^2/R^2
=16/81
Answered by
15
Answer:
16/81 is the answer
Step-by-step explanation:
ok brainliest
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