lilxjayyy
13.02.2021 •
Mathematics
Please help me, I forgot how to do this):
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Ответ:
x = 8
Step-by-step explanation:
Recall that the interior angles of a triangle always add up to 180 degrees.
Therefore: 77 + 50 + 7X - 3 = 180, or:
77 + 7X - 3 = 130, or:
7x = 56
Dividing both sides by 7 yields x = 8
Ответ:
Ответ: