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3 years ago

The area of a circle is 144π ft². What is the circumference, in feet? Express your answer in terms of \piπ.

Mathematics

1 answer:

max2010maxim [7]3 years ago

3 0

Answer:

24π inches

Step-by-step explanation:

Area = π × r²

144π = π × r²

r² = 144

r = 12

Circumference = 2 π × r

= 2 × π × 12

= 24π in

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$\dfrac{\partial z}{\partial x}=\dfrac{2x}{x^2+y}=\dfrac{2re^t}{r^2e^{2t}+te^r}$

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Putting the appropriate pieces together and setting $(r,t)=(1,2)$ , we get

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