Question

the circumference of two circle are in the ratio 1:3 find the ratio of their area

Answer 1

Answer:

1:9

Step-by-step explanation:

1:3 = Circumder

means 2πr= 2πr

1x:3x is the ratio of their radius

Then the area will be

πr^2 = πr^2

1: 9

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Answer 2

Answer:

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