M∠1= a) 40 b) 80 c) 160

2 answers:

6 0

$\angle 1 = \frac{1}{2} (50 + 30)
$

$\angle 1 = \frac{1}{2} (80)$

$\angle 1 = 40 \textdegree$

4 0

Answer: 40

Step-by-step explanation:

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Serjik [45]

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