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Please help with this question. Thank you!

 Apr 24, 2019
 #1
avatar+18754 
+3

Circumference of ENTIRE circle is  pi * diameter =  30 pi   inches

 

Entire circle is 2 pi Radians

 

this arc is a fraction of 2 pi radians     the fraction  is  35 in / 30 pi   inches

 

35/(30pi) * 2pi Radians = 2.33 Radians

 Apr 24, 2019
 #2
avatar+102320 
+2

Arc length  =   r * (theta in radians)

 

35  =  15 * (theta in radians)      divide both sides by 15

 

35/15  =  theta in radians  =  7/ 3  ≈  2.33.... rads

 

 

cool cool cool

 Apr 24, 2019

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