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Find the area of the shaded sector of the circle.

Find the area of the shaded sector of the circle.-example-1
User MichielB
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\textit{area of a sector of a circle}\\\\ A=\cfrac{\theta \pi r^2}{360} ~~ \begin{cases} r=radius\\ \theta =\stackrel{degrees}{angle}\\[-0.5em] \hrulefill\\ r=2\\ \theta =270 \end{cases}\implies A=\cfrac{(270)\pi (2)^2}{360}\implies A=3\pi

User L Bahr
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