Answer :

Cynthia403

Answer:

first find the radius of the circle r^2=221/22/7 then find the area

chetankachana

Answer:

3885.93 cm² or 3886.64 cm²

Step-by-step explanation:

Hello!

Circumference of a Circle: [tex]C = 2\pi r[/tex]

We first have to find the radius. To do so, we can plug in 221 for "C" and isolate "r".

Find the Radius

  • [tex]C = 2\pi r[/tex]
  • [tex]221 = 2\pi r[/tex]
  • [tex]110.5 = \pi r[/tex]
  • [tex]35.1732424233 = r[/tex]
  • [tex]r \approx 35.17[/tex]

Area of a Circle: [tex]A = \pi r^2[/tex]

Now that we have the radius, we can use it to find the area using the area formula.

Find the Area

  • [tex]A = \pi r^2[/tex]
  • [tex]A = \pi (35.17)^2[/tex]
  • [tex]A = \pi(1,236.9289)[/tex]
  • [tex]A = 3,885.9267452529[/tex]
  • [tex]A \approx 3,885.93[/tex]

The area is approximately 3885.93 cm².

If we used the full number (all decimals given by the calculator), you would have an answer around 3886.64.

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