anonymous
  • anonymous
What is the circumference of this circle?
Geometry
  • Stacey Warren - Expert brainly.com
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SOLVED
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chestercat
  • chestercat
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anonymous
  • anonymous
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amistre64
  • amistre64
there is a fundamental relationship between circumference and diameter\[\pi=\frac Cd\]
anonymous
  • anonymous
I got 19.625 Isn't Circumfrence Pi*r^2

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anonymous
  • anonymous
And since it gives the diameter it is Pi*D
anonymous
  • anonymous
I'm confused, so is it D or C?
amistre64
  • amistre64
Area is not Circumference ....
amistre64
  • amistre64
you might be confusing the elements of pi, r, and 2 \[\pi~r^2\not=\pi~2r\]
amistre64
  • amistre64
since the diameter is twice the radius: 2r = d
amistre64
  • amistre64
\[\pi=\frac Cd~\to~d\pi=C\]
anonymous
  • anonymous
Ok thank you
anonymous
  • anonymous
I pretty sure I am right. I just looked up the equation for circumference and it is Pi x Diamiter
amistre64
  • amistre64
pi r^2 is not correct pi 2r = pi d is correct so your "correctness" depends on how we are to interpret your post :)

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