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scoray [572]
4 years ago
12

Help me please and pls explain how you got your answer.

Mathematics
1 answer:
enyata [817]4 years ago
3 0

l \parallel m\Rightarrow  m\angle2 =m\angle6 = 102°\\ m\angle1 + m\angle2 = 180°\Leftrightarrow m\angle1 = 180° - m\angle2 = 180° - 102° = 78°

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