The answer is ten hope this helps :-)
First solve the triangle:
75° + 75° + x = 180°
150° + x = 180°
x = 180° - 150°
Therefore x = 30°
Then, use the geometrical property of vertically opposite angles.
Therefore. x° = 30°
Answer:
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Step-by-step explanation:
number 1 could be 2 different answers
