Is a circles area proportional to its radius? Is a circles circumference proportional to its diameter?

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asked Sep 19, 2022 31.2k views

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Shoesel · Answer 1 · 2022-09-22T19:43:28+0000

In geometry, the area enclosed by a circle of radius r is πr2. Here the Greek letter π represents the constant ratio of the circumference of any circle to its diameter, approximately equal to 3.14159.

Is a circles area proportional to its radius? Is a circles circumference proportional to its diameter?

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