-1-
-2-
x° = 44° + x°/2 + 38°
x°/2 = 82° ===> x° = 164°
-------------------------
R1=180-38-X1
R2=180-44-X2
R=R1+R2
X°=360-(X1+X2)
R=360-44-38-(X1+X2)
R=X°- 82
R=X°/2
X°/2=X°-82
X°/2=82
X°=164°
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-3-
-4-