Answer :

eliset
54 degrees
• you would do 180 degrees minus 126 to find angle 1, and angle 1 is the same as angle 5

Answer:

m∠5 = 54

Step-by-step explanation:

m∠1 + 126 = 180

m∠1 = 54

m∠1 = m∠5

m∠5 = 54

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