-1-
-2-
2x+2y+50+106=360.
2x+2y=
360–50+106=
2(x+y)=
360-156=204.
X+Y=204/2
=102.
360-102+106=360-208=152.
180-152=28. 28
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2x+2y+156=360>
x+y=180-78=102
, x+y+106+180-Q(Red)=360
, 102+106+180-360=(Q)Red
, (Q)Red=388-360=28°
---------
360 -156=204/2=102
360-(106+102)=360-208=152
180-152=28°
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