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Sagot :
Answer:
x=41 et y=131
Step-by-step explanation:
49+x=90
x=90-49=41
---------------------------
y=90+x
y=90+41=131
Answer:
131°
Step-by-step explanation:
take the line with angle 49°
st line angle is 180°
49+90+a = 180 where (a+90=y)
139+a = 180
a = 180-139=. 41°
by opposite angles equal axiom a =x = 41°
y = 131°
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