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3 years ago

A bicycle wheel with radius 26" rotates through an arc that measures 80°. What is the length of the arc of the tire that touched

the ground?

Mathematics

1 answer:

Bad White [126]3 years ago

8 0

$\bf \textit{arc's length}\\\\
s=\cfrac{\theta \pi r}{180}\quad 
\begin{cases}
r=radius\\
\theta =angle~in\\
\qquad degrees\\
------\\
\theta = 80\\
r=26
\end{cases}\implies s=\cfrac{80\cdot \pi \cdot 26}{180}$

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