bewellplus.gsu.edu
mzcooper10 mzcooper10
  • 20-02-2016
  • Mathematics
Answered

If the radius of the circle is 4 cm, find its circumference. [Use 3.14 for π.]

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PutereDinu
PutereDinu PutereDinu
  • 20-02-2016

\(r=4 \ cm \\ \pi=3,14 \\ \boxed{C-?} \\ \bold{Solving:} \\ \boxed{C=d \cdot \pi=2r \cdot \pi} \\ C=2 \cdot 4 \ cm \cdot 3,14=8 \cm \cdot \pi \\ \Rightarrow \boxed{C=25,12 \ cm}\)

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doctorwhomaniam
doctorwhomaniam doctorwhomaniam
  • 20-02-2016

Circumference = 2πr = 23.144 = 25.12

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