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how to work out the size of an exterior angle of a regular pentagon

 Nov 1, 2017
 #1
avatar+99384 
+3

interior angle of a regular pentagon = [180(5-2)]/5 = 36*3= 108 degrees

 

Exterior angle = 180-108 = 72 degrees

 Nov 1, 2017
 #2
avatar+21869 
+4

how to work out the size of an exterior angle of a regular pentagon

 

 

laugh

 Nov 1, 2017

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