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https://vle.mathswatch.co.uk/images/questions/question15375.png

jakeharris02  Nov 7, 2017
 #1
avatar+87635 
+2

 

The arc  is   [120 /360 ]  =  1/3 of a circle

 

The difference in the arcs is

 

(1/3)(2pi) [ 6 - 5]  =

 

(1/3)(2pi) [ 1 ]  =

 

(2/3) pi   cm ≈  2.1 cm

 

 

cool cool cool

CPhill  Nov 7, 2017

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