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Mathematics 20 Online
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

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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