lizzie00 lizzie00
  • 01-02-2015
  • Mathematics
contestada

find correct two decimal places, the radius of the circle with the given circumference: 35cm

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naǫ
naǫ naǫ
  • 01-02-2015
[tex]C=2 \pi r[/tex]
C - circumference, r - radius

[tex]C=35 \ [cm] \\ \\ 35=2 \pi r \\ r=\frac{35}{2 \pi} \\ r=\frac{17.5}{\pi} \\ \boxed{r \approx 5.57 \ [cm]}[/tex]
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konrad509
konrad509 konrad509
  • 01-02-2015
[tex]C=2\pi r=35\\ 2\pi r=35\\ r=\dfrac{35}{2\pi}\approx5.57\text{ cm}[/tex]
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