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masha68 [24]
3 years ago
14

Hi!

Mathematics
2 answers:
ra1l [238]3 years ago
5 0
168 degrees
180-12=168
kykrilka [37]3 years ago
5 0

Step-by-step explanation:

12° + x° = 90°

x. = 90 - 12

x =78°

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