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A circle's area is directly proportional to its radius squared.
What is the constant of proportionality (to 2 decimal places)?
(Area of a circle = rr2)

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sqdancefan

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Answer:

  3.14

Step-by-step explanation:

The formula for the area of a circle is ...

  A = πr²

The constant of proportionality is the constant in this equation: π. To two decimal places, the value of π is 3.14.

The constant of proportionality is about 3.14.

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