90

90 + 90 = 180

180

 
90 + 90 = 180 + 90 = 270

270

 
90 + 90 = 180 + 90 = 270 + 90 = 360

360

 
 

When you see the double 1/4th circle then those mean that they are the same angles we will go in to this a little bit more later

 
 

angle 1 = 90  what does angle 2 = ?

 
 

angle 1 = ?  angle 2 = 13  angle 3 = ?

 

angle 1 = 90  angle 2 = 20  angle 3 = ?

 
 

1 = 170  2 = 100  3 = ?

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