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Mathematics 10 Online
OpenStudy (anonymous):

What is the area of a circle with diameter of 63 inches?

OpenStudy (anonymous):

I think it's 12462. I believe I'm wrong.

OpenStudy (anonymous):

197.82 inches

OpenStudy (anonymous):

How did you get that?

OpenStudy (anonymous):

Use π = 3.14 Step 1: The diameter of the circle is 63 inches. Step 2: The circumference of a circle = π x diameter. Step 3: The circumference of the circle = 3.14 x 63[Substitute π = 3.14 and diameter = 63 inches.] Step 4: = 197.82 inches Step 5: The circumference of the circle is 197.82 inches.

OpenStudy (anonymous):

992.25π or to be rounded to the hundredth, 3115.67 in^2

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