+0  
 
+1
272
1
avatar+315 
 Jan 25, 2019
 #1
avatar+111328 
+2

First one is true

 

Second is false  (an acute angle measures < 90 degrees )

 

Third is false....this is an obtuse angle

 

The last is false .....a relex anlgle measures > 180 degrees but < 360 degrees

(2 pi / 3  =   120 degrees.....so....not a refex angle )

 

 

cool cool cool

 Jan 25, 2019
edited by CPhill  Jan 25, 2019

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