Respuesta :

chloeandcabal
pi r squared is area.
2 pi r is circumference.

a =c^2 / 4pi = 30^2 / 4 * pi = 71.619
beinggreat78

Answer:

71.62

Step-by-step explanation:

[tex]A = \frac{C^2}{4 \times \pi }\\A = \frac{30^2}{4 \times 3.14 }\\A = 71.62[/tex]

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