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Ray Of Light [21]
4 years ago
5

If the arc length of a sector in the unit circle is 4.2, what is the measure of the angle of the sector?

Mathematics
1 answer:
iren [92.7K]4 years ago
4 0
Bear in mind the Unit Circle is called so, because its radius is exactly 1, thus just 1 unit, the Unit Circle

anyway    \bf \theta=\cfrac{180s}{\pi r}\qquad 
\begin{cases}
\theta=\textit{central angle in degrees}\\
r=radius\\
s=\textit{length of the arc}\\
----------\\
s=4.2\\
r=1
\end{cases}\implies \theta=\cfrac{180\cdot 4.2}{1\cdot \pi }
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