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# Area and Arc Math Question Help??

a) Determine the length of the arc of a circle with radius 15 m and a central angle of 100 degrees.

b) The central angle of a sector of a circle with radius 20 cm is 65 degrees. Determine the area of the sector.

### 1 Answer

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- Jeff AaronLv 76 months agoFavorite Answer
a) 2*pi*15*(100/360) = (25/3)*pi =~ 26.179938779914943653855361527329 m

b) pi*(20^2)*(65/360) = (650/9)*pi =~ 226.89280275926284500007979990352 m^2

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