3 years ago

What is the circumference of area=64pi mi^2

Mathematics

1 answer:

azamat3 years ago

4 0

Answer:

16pi mi

Step-by-step explanation:

The smallest circumference for a given area is that of a circle with that area. The area is given by ...

A = πr²

so we can find r as ...

64π = πr²

r = √64 = 8 . . . . miles

The circumference of this circle is ...

C = 2πr = 2π·(8 mi) = 16π mi

The circumference of the area is at least 16π miles.

_____

If the shape is not constrained to a circle, the circumference can be anything you like.

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