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rb276
06.05.2020 •
Mathematics
What’s the missing angle
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Ответ:
99°
Step-by-step explanation:
When straight lines intersect, vertical angles appear.
Vertical angles are ALWAYS equal in measure, whether the lines are parallel or not.
Ответ:
B) 99°
Step-by-step explanation:
The crossing angles have the same angle.
So, the missing angle is 99° (B)
Hope it helpful and useful :)
Ответ:
Subtract 9c from both sides:
2c-12-9c=9c+2-9c
Add 12 to both sides:
-7c-12+12=2+12
-7c=14
Divide both sides by -7:
-7c/-7=14/-7
c=-2