pa18
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The radius r of a circle can be written as a function of the area A with the following equation:

[tex]r= \frac{A}{ \pi } [/tex]

What is the domain of this function? Explain why it makes sense in this context.

Respuesta :

The real formula of the radius is r = √(A/pi)

 In this context, it makes sense as the radius cannot have a negative value. 

Thus, the domain of the function is [0,∞)

This means that the Area can have any positive value starting from zero.