Mathematics
Junior High
中2の数学です✏️📖📐
155°が答えなのは分かったれど出し方が分からないのが解説お願いしたいです🙇🏻♀️ ՞
Xの角度を求める問題です！
(5)
l
m-
l || m
50
X
20°
105°
30°
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