Question

Determine a medida do raio de uma peça circular que possui 9,420 metros de comprimento considere pi=3,14

Answer 1

A medida do raio da peça circular é: $\large1,5~m$

Explicação passo-a-passo:

$\Large\displaystyle\begin{gathered} C = 2 \cdot \pi \cdot r\end{gathered}$

$\Large\displaystyle\begin{gathered} 9 ,420 = 2 \cdot3,14 \cdot{r}\end{gathered}$

$\Large\displaystyle\begin{gathered} 9,420 = 6,28r\end{gathered}$

$\Large\displaystyle\begin{gathered} 6 , 28r = 9 , 420\end{gathered}$

$\Large\displaystyle\begin{gathered}r = \frac{9,420}{6,28} \end{gathered}$

$\Large\displaystyle\begin{gathered} r=1,5\:m\end{gathered}$