The distance from the center of a compact disc to the edge of the disc is 6 centimeters. What's the area of the compact disc? A. 36 square centimeters B. 113.04 square centimeters C. 18.84 square centimeters D. 452.16 square centimeters
The distance from the center of a compact disc to the edge of the disc is 6 centimeters. The area of the compact disc is 113.04 square centimeters. Solution: A = pi * r^2 A = pi * 6^2 A = 36pi; A = 3.14 x 36; A = 113.04.
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An earthquake was felt throughout a circular area of 1,808.64 square miles. What was the radius of the circular area? A. 576 miles B. 12 miles C. 20 miles D. 24 miles
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Updated 60 days ago|9/24/2020 7:41:01 PM
An earthquake was felt throughout a circular area of 1,808.64 square miles. The radius of the circular area was 24 miles.

Solution: r = sqrtA/pi r = sqrt 1,808.64 sq. miles/3.14 r = sqrt 576 sq. miles r = 24 miles.
Added 60 days ago|9/24/2020 7:41:01 PM
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