Question

Find the length of the arc.arc circle 3A. 8π ftB. 32π ftC. 64π ftD. 361π12 ft

Answer 1

Solution:

Given the circle:

The length, L of the arc is;

$\begin{gathered} L=\frac{\theta}{360}\times2\pi r \\ \\ \theta=90^o,r=16ft \end{gathered}$

Thus;

$\begin{gathered} L=\frac{90}{360}\times2\pi(16) \\ \\ L=8\pi ft \end{gathered}$$\begin{gathered} L=\frac{90}{360}\times2\pi(16) \\ \\ L=8\pi ft \end{gathered}$

CORRECT OPTION: A