mzcooper10 mzcooper10

20-02-2016
Mathematics

contestada

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

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PutereDinu PutereDinu

20-02-2016

[tex]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}[/tex]

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doctorwhomaniam doctorwhomaniam

20-02-2016

Circumference = 2πr = 2*3.14*4 = 25.12

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