the first blue arc is 80°
for the second one we get
[tex]2x+7x-9=360\rightarrow9x=351\rightarrow x=\frac{351}{9}=39[/tex]therefore the blue arc is 78°
for the third circle we get that blue arc is:
[tex]360-279.5=80.5^{\circ}[/tex]for the last one we get:
[tex]5x+29+2x-19=360\rightarrow7x=350\rightarrow x=\frac{350}{7}=50[/tex]so the arc is:
[tex]100-19=81[/tex]so the largest minor arc is the one that measure 81. So the last circle
