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Mathematics 8 Online
OpenStudy (ohohaye):

Please Help Me (Pic in comments)

OpenStudy (ohohaye):

hartnn (hartnn):

length of arc = radius * angle in radians. \(s = r\theta \)

hartnn (hartnn):

what is the radius?

OpenStudy (ohohaye):

170?

hartnn (hartnn):

the radius of the circle is 12

OpenStudy (ohohaye):

I'm not sure

hartnn (hartnn):

|dw:1455597807300:dw|

OpenStudy (ohohaye):

Ok, now what do I do?

hartnn (hartnn):

use the formula :) \(s = r \theta \\ 32.5 = 12\theta \\ find \: \: \theta \)

OpenStudy (ohohaye):

2.92?

hartnn (hartnn):

i get 2.708

OpenStudy (ohohaye):

Oh yeah, I accidently did 35 instead of 32.5

hartnn (hartnn):

thats it! thats your angle :)

OpenStudy (ohohaye):

Ok, thank you

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