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1 2 3 m⊾3=2x+5 m⊾1= x m⊾2=2x Key: ⊾1+⊾2+⊾3=180 x+2x+2x+5=180 x= m⊾1= m⊾2= m⊾3= 1 2 3 m⊾3=2x+5 m⊾1= x m⊾2=2x Key: ⊾1+⊾2+⊾3=180 x+2x+2x+5=180 1 2 3 m⊾2= m⊾1= m⊾3= x= m⊾1=3x+1 m⊾2=2x+17 m⊾3=5x+2 y remember key for lines?????? x 65 45 ⊾1+⊾2+⊾3=180 x= y= m⊾4= m⊾2= m⊾3= straight line 1 2 3 4 m⊾3=x+40 m⊾4=2x+20 m⊾2= x= m⊾1= key:????? x 1 2 m⊾2= m⊾1= key:??????? x= m⊾2=2x+22 m⊾1=4x+50 e a d c f b g b=85 c= d= a=60 g= f= e=45 a= b= c= d b a c e x= e= b=3x+40 c=3x+18 d= a=2x+50 55 40 e d b c a f 100 g c= d= e= b= a= g= f= c=x+10 b=x+75 a=x+5 a b x= a= c b= c= |