a9700022182 a9700022182

13-04-2018
Mathematics

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the central angle of a sector is 60 degrees and the area of the circle is 144 pi. What is the area of the sector

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jingbang1126p711gt jingbang1126p711gt

13-04-2018

The radius of the circle,
Pi × r² = 144 pi
r ² = 144
r = 12

The area of the sector,
60 / 360 × pi × 12² = 144/6 × 22/7 or 3.142
= 75. 43 or 24 pi

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