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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. WHAT!?!?!?!? Write an expression in simplest form for the area of a circle with a radius of 4r. Use 3.14 for pi. WHAT!?!?!?!? @Mathematics
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OpenStudy (anonymous):
3.14 * (4r)^2 = 50.24 r^2
OpenStudy (anonymous):
50.24r^2 rounded off to 50r^2
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