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OpenStudy (anonymous):
Write an expression in simplest form for the area of a circle with a radius of 4r. Use 3.14 for pi
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OpenStudy (saifoo.khan):
Myininya, after u get free, please chk that: http://openstudy.com/groups/mathematics#/groups/mathematics/updates/4e90ce770b8bfb9f23e28af4
OpenStudy (saifoo.khan):
ty.
myininaya (myininaya):
A=pi * (radius)^2 is the area of a circle just plug in
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