Respuesta :

Answer:

Use the formula pi r^2. You are finding the radius. Plug the numbers in.

Answer:

Should be the second one.

Step-by-step explanation:

First you have to think that the entire circle is blue. So the area of the blue circle is: 3.14*11^2 = 379.94.

Then you have to look at the smaller circle. There the radius is: 3. So the area would be: 3.14*3^2 = 28.26

They are asking you to find the shaded area. So you subtract the bigger circles area with the smaller circle.

379.94 - 28.26 = 351.68 to the exact.

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