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OpenStudy (anonymous):
What is the exact area of a circle with a diameter of 18 feet? A. 36π square feet B. 81π square feet C. 324π square feet D. 1296π square feet
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OpenStudy (anonymous):
@Lady.Liv1776
OpenStudy (acxbox22):
area = pi (r^2)
OpenStudy (acxbox22):
what is the radius given the diameter of 18?
OpenStudy (anonymous):
9?
OpenStudy (acxbox22):
yes now plug it into the formula|dw:1427164476099:dw|
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