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This is the only question I need help with that I am completely stuck on. I can never find the right number for the length of each circular arc.

 

I got (c) which is 22.15

 

I think (a) could be 3 but I could be wrong. 

 Sep 6, 2018
 #1
avatar+98196 
+1

(a)  a  = 60     C  = 48 cm

 

Arc Length  =   48 * (60 / 360)  =  48 * (1/6)  =  8 cm

 

 

cool coolcool

 Sep 6, 2018
 #2
avatar+98196 
0

(b) a = 74   r  = 2 ft

 

Arc Length  =  2 pi * 2 * (74 / 360) ≈ 2.58 ft

 

 

cool coolcool

 Sep 6, 2018
 #3
avatar+98196 
+1

(c)  Your answer is correct !!

 

(d) a  = 150    r  = 3m

 

Arc Length  =  2pi * 3 * (150 / 360)  ≈  7.85 m

 

 

cool cool cool

 Sep 6, 2018

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