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If the area of a circle is 64 pi what is the diameter
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If the area of a circle is 64 pi what is the diameter

User ZeWaren
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hello :
the area of a circle is : A = π × r² r : the raduis
the diameter is : d d= 2r
A = 64 π
64 π = π × r²
r² = 64
r = 8
d= 16
User Marco Nisi
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