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31 votes
Find Area of each shaded sector. Round to the hundredths place.

Find Area of each shaded sector. Round to the hundredths place.-example-1
User Eskandar Abedini
by
2.2k points

2 Answers

14 votes
14 votes

Answer:

1330.81

Explanation:

I'm not sure if it wanted the individual sectors or the whole shaded region in general, so I just did the latter since it seemed easier. Hope it helps!

Find Area of each shaded sector. Round to the hundredths place.-example-1
User SamuelDavis
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3.0k points
18 votes
18 votes

Check the picture below.

so the area that is not shaded has a total of 90° + 26° = 116°.

a circle has a total of 360°, so the area that is shaded must be 360° - 116° = 244°, and it has a radius of 25.


\textit{area of a sector of a circle}\\\\ A=\cfrac{\pi \theta r^2}{360}~~ \begin{cases} r=radius\\ \theta =\stackrel{degrees}{angle}\\[-0.5em] \hrulefill\\ r=25\\ \theta =244 \end{cases}\implies \begin{array}{llll} A=\cfrac{\pi (244)(25)^2}{360}\implies A=\cfrac{7625\pi }{18} \\\\\\ A\approx 1330.81 \end{array}

Find Area of each shaded sector. Round to the hundredths place.-example-1
User Petri Lehtinen
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3.6k points