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Sagot :
Answer:
Step-by-step explanation:
A + 32° + 45° = 180°
A + 77° = 180°
A = 180° - 77°
A = 103°
I hope I've helped you.
Step-by-step explanation:
A + 32 + 45 = 180 (why? Sum inside angles = 180 degrees. Proof? If you want learning proof, I show you)
A = 103
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